Chapter 109 Are you sure you are Wang Hao from Donggang?
Tensile strength 1560 MPa, what is the concept?
There are many types of titanium alloys, and in cutting-edge titanium alloy research, tensile strength is a very important indicator.
According to the index value of tensile strength, titanium alloys with high strength can be called "high-strength titanium alloys", which refers to titanium alloys with room temperature tensile strength between 1100 MPa and 1400 MPa, consisting of nearly beta titanium alloys.
Composed of metastable beta titanium alloy.
This is also the reason why the tensile strength of conventional titanium alloys is below 1400 MPa.
If the tensile strength value of titanium alloy is higher, it will break out of the "conventional" category and be called "ultra-high-strength titanium alloy".
This type of titanium alloy is in the "development stage" internationally.
Top institutions in various countries are doing research on "ultra-high-strength titanium alloys", and some institutions and large companies have defined research indicators for ultra-high-strength titanium alloys.
For example, Americen's Boeing Company, their research indicators for super-strong titanium alloys are: tensile strength at room temperature is greater than 1500 MPa, shear strength is greater than 860MPa, elongation is greater than 8%, and loading stress is equal to 45% of room temperature tensile strength.
The number of fatigue cycles at tensile strength is not less than 100,000 times, etc.
Under this data index, what is considered promising is a metastable beta titanium alloy with the serial number Ti8V5FelAl. Its typical mechanical properties reach a room temperature tensile strength of more than 1480 MPa and an elongation of 8%.
The titanium alloy produced in the metal laboratory now has a tensile strength of more than 1560 MPa, which is 50 MPa higher than the defined value of ultra-high-strength titanium alloy.
Although other properties have not been tested, titanium alloy has a very important feature. Its tensile strength and yield strength have similar values, and other indicators, including titanium alloy, also have a certain relationship.
Even if other data indicators are not ideal, it doesn't matter much. The research project of the Metal Laboratory is originally a single-directional material science research. Their research purpose is to continuously improve the strength of titanium alloy so that the research and development results can provide titanium alloy
Provide reference for material application research and development.
As long as the strength of the manufactured finished product is increased to a certain value, the project can be said to be completed.
In the past, the production of titanium alloys with a tensile strength of more than 1,400 MPa could be regarded as a settlement project, but the production of 1,560 MPa was simply unthinkable.
Titanium alloys with a strength exceeding 1,500 MPa can be produced by conventional means, which is currently unavailable in the world. In other words, they have achieved results that exceed the highest international level and are at the forefront of the research and development of ultra-high-strength titanium alloys.
Everyone in the metal laboratory knows what the number 1560 MPa represents.
Everyone is excited, everyone is excited.
Peng Hui's face was also flushed with excitement. He was excited for a while and even danced a little. It took him a long time to calm down and start explaining his work. "Everyone, please be careful not to spread this matter!"
"Du Hai, you will continue to be responsible for testing."
"Wan Yiming, organize all the processes and data of this manufacturing. You must organize them in more detail. Every small number must be recorded!"
After he finished speaking, he added, "After sorting it out, I will send a copy to Professor Wang Hao."
"good!"
The laboratory continues to be busy.
…
Wang Hao received the experimental data from the metal laboratory that day. Because it was too late, he just glanced at the parameters of the finished product and knew that the expected goals had been achieved, so he calmly went to bed and rested.
The next day, he was in the mood to take a closer look at the experimental records.
The Metal Research Institute sent two experimental records, the last and this time, which produced titanium alloys with tensile strengths of 1410 MPa and 1560 MPa respectively.
These two experiments can be said to be very successful, and the process records and data content included are of great reference value.
Wang Hao is also sure that the analysis he has made is on the right path, but he still has to continue to work hard, and the experimental data analysis work has not yet been completed.
The three subsequent courses last week brought another 63 points of inspiration improvement. The inspiration value has now reached 70 points, and is only 30 points short of reaching one hundred.
Wang Hao is still looking forward to it very much.
With the experience of doing data analysis for nano-micro experiments, I know that I can continue to improve the relevant analysis conclusions next time and continue to improve the strength of the finished product.
"Because it uses conventional manufacturing methods. If it can be increased to 1,700 MPa, it should be completely beyond the top international levels."
"Achieving this value is worthy of celebration."
Wang Hao thought while thinking, he was still very busy at work, and many things were piled up at the beginning of the month.
For example, a reporter interviews.
This time a reporter came to interview, mainly because "New Advances in Mathematics" released a new issue, and his research on finding Mersenne primes was published in the first article.
The publication of the paper also made the mathematical community continue to discuss Mersenne prime numbers, and many mathematical circles mentioned a name - 'Wang's conjecture'.
The review editor of "New Advances in Mathematics" also mentioned the 'Wang's conjecture' in his evaluation of the paper, "This is not a perfect proof, but a conjecture that can help find Mersenne prime numbers."
"Referring to information released by China and GIMPS, they found several Mersenne primes, including even a super-large Mersenne prime number of 100 million digits, which is enough to prove that the 'Wang's Conjecture' is true among Mersenne numbers of no more than 1 billion digits.
.”
"What's interesting is that starting from today, we have two conjectures about the study of Mersenne prime numbers..."
The other is Zhou's conjecture.
Zhou's conjecture is very famous. It describes the distribution of Mersenne prime numbers. Many mathematicians have carefully studied Mersenne prime numbers and tried to prove Zhou's conjecture, but they all ended in failure.
Compared with Zhou's conjecture describing distribution, Wang's conjecture has a clear purpose, which is to find Mersenne prime numbers.
Wang's conjecture also achieved its goal.
In the field that can be calculated, it covers more than two-thirds of the Mersenne primes.
Compared with Zhou's conjecture, which even ordinary people can understand, the content of Wang's conjecture is much more complicated. The two functions created are a headache to look at. Even if you are not a graduate student in mathematics department or above, even the content of the function
Neither can understand it.
The reporter came to interview Wang Hao because of the publication of a paper in "New Advances in Mathematics".
Some time ago, the research on Mersenne primes made a lot of noise and attracted great public attention. Reporters also wanted to know more about it, such as when the results report will be made.
Wang Hao briefly said a few words in the interview. He did not discuss the content of the results, but made it clear that he would give a report at the Mathematical Science Center of Shuimu University after the year.
He said sincerely, "Professor Qiu Chengwen from the Mathematical Science Center invited me. I thought about it carefully and it would be easier to give a report there."
Wang Hao said nothing more after that.
"New Advances in Mathematics" published his paper, which had almost no impact on him.
Discussions in academic circles will not affect him, and his life will not be affected in any way, because the school and other people have already known the news.
Meanwhile, there's other good news.
Northern Xinjiang Province has released the annual selection results for the province's three awards in natural science, technological invention and scientific and technological progress. Two of Wang Hao's personal studies won the second prize in natural science and the first prize in technological invention in Northern Xinjiang Province respectively.
The one who won the second prize in natural science was "Proof of the Regularity of the Monge-Péy Equation"; and the one who won the first prize in technical invention was "Algorithm for Multiplication of Large Numbers".
Two studies won two awards, one was the first prize and the other was the second prize. Overall, it was very good.
Provincial awards are based on projects, and individual and team achievements will be competed together.
"Proof of the Regularity of the Monge-Pey Equation" is a world-class mathematical theoretical achievement. However, in fact, the competitiveness of the award is not high, because mathematics is not a subject participating in the award selection, and the results of other disciplines will also compete together.
Winning the second prize in natural science already shows that you are highly valued.
Of course.
If he were to participate in the selection with the argument of Artyn's constant, he would definitely be able to easily win the first prize in the province's natural sciences.
Unfortunately, the research on Artin's constant was completed a little late. When it was completed and submitted, the selection for the provincial science awards had already begun, and we had to wait until next year.
At that time, it is very likely that I will submit my application directly to participate in the selection of national science awards.
The science and technology awards in the two provinces are not just as simple as honors, but can also receive a total of 350,000 tax-free bonuses. It is definitely good news to get more bonuses.
Wang Hao continued to devote himself to data analysis work with great joy.
This is the Monday of the first month of the month.
Zhang Zhiqiang went to the finance department to collect his salary slips in the morning, and he also helped Wang Hao to collect them. He held the two salary slips in his hand and compared them. His good mood about paying wages was completely gone.
I only saw his own salary slip, and the final actual salary was 10,465 yuan.
For Wang Hao's account, after prepaying 20% of the personal income tax for the school subsidy, the actual salary was 314,028.
Zhang Zhiqiang stared at the two pay slips again and again and thought about how he and Wang Hao were both professors at Xihai University. Why was there such a big gap?
At the end of the month, the salary is not even a fraction of the other party's.
Zhang Zhiqiang returned to the office with his salary slip, handed Wang Hao's one over, and then looked at it with envy and jealousy.
Wang Hao took it and glanced at the salary slip, frowning slightly, "Twenty thousand less, right? The subsidy for the paper published at the end of the month will be paid next month?"
He shook his head and put the pay slip in his pocket.
Keep your head down and continue your research.
Zhang Zhiqiang returned to his seat mechanically. Looking at Wang Hao's movements, body, and words throughout the whole process, he felt that his heart had been flooded with tears.
The actual salary was 310,000, and he actually said he was still not satisfied?
Are you talking about tens of thousands less?
You seem to be used to that nonchalant look?
Zhang Zhiqiang lowered his head and looked at his salary slip again, looking at every number carefully. In the end, all his emotions turned into a long sigh.
Then he turned his head and looked out the window, his eyes slowly falling into a dull state.
He somewhat understood Luo Dayong.
…
at the same time.
The Metal Laboratory reported the results again to the Materials Science Department of the Natural Science Foundation.
After the Materials Science Department received the report, they initially thought it was a repeated report. After an expert glanced at it, they immediately called the Metal Laboratory and confirmed that it was a new development in research and development.
However, this new development is too exaggerated, and the speed is too fast!
The result reported last Monday was that a titanium alloy with a tensile strength of 1410 MPa was produced. Just a week later, a report was made stating that a titanium alloy with a tensile strength of 1560 MPa was produced?
1410 MPa, which has reached the standard of 'ultra-high-strength titanium alloy'. Normally, if the strength value increases by ten points, it can be regarded as a research breakthrough. A direct increase of 150 points can be described as 'incredible'.
.
No.
It’s ‘can’t believe it’!
Several permanent experts from the Materials Science Department gathered together and immediately decided to notify other top experts to form a review team and go to the metal laboratory to see what the specific situation was.
The Materials Science Department of the Natural Science Foundation has a team of up to 200 review experts for key projects, most of which are scattered in various universities and research and development institutions. The top ones include 21 academicians of the Academy of Sciences and the Academy of Engineering, but most of them are
In name only, only results that cannot be judged and are controversial will be touched.
Now it's close to 'unable to judge'.
The Materials Science Department found Cao Dongming, one of the country's leading authoritative experts in the field of titanium alloys.
Cao Dongming is a researcher at the Aeronautical Research Institute, a doctoral supervisor, and the chief technical expert of titanium alloy material technology of the Aviation Group.
Over the past two decades, Cao Dongming has led his team to innovate independently, completing 11 national key projects and completing countless titanium alloy application results. He has created an aerospace titanium alloy material system that is in line with the domestic situation.
He has won numerous awards, including first and second prizes for scientific and technological progress, first and second prizes for scientific and technological achievements, first and second prizes for national defense prevention research, etc.
Cao Dongming has countless honors and is considered the first person in the field of titanium alloy research and development in China.
When Cao Dongming heard that the Metal Laboratory of Western Jiaotong University had completed the research and development of ultra-high-strength titanium alloys, and the finished product manufactured by conventional methods had a tensile strength of up to 1560 MPa, he was immediately shocked.
At the same time, I am also very curious.
He immediately decided to leave for Xijing Jiaotong University to see what the research in the metal laboratory was like.
Cao Dongming is very fast, much faster than other experts who are coming.
At noon on Wednesday, he arrived at Xijing Jiaotong University with only one student, and went straight to the metal laboratory without saying hello in advance.
Peng Hui knew that an expert team would come from the Materials Science Department, but he did not expect that it would be Cao Dongming who would come, and it would come so quickly. The reception was a little rushed, so he had to take Cao Dongming to the office first.
Cao Dongming didn't care about hospitality or anything like that. He was more concerned about the research results and immediately asked about relevant matters.
Peng Hui took out a piece of shiny alloy from the box under the bookshelf, "This is the finished product. We have tested it in detail and the tensile strength at room temperature exceeds 1560 MPa."
"The yield strength is 1530 MPa, the shear strength is 1010 MPa, and the elongation is between 7.5% and 8.3%..."
He mentioned some other data.
Cao Dongming walked closer and touched the surface of the alloy with his hand, "The color should be brighter, and the aluminum content should be high, right? Professor Peng, can you tell us about the specific process? I heard from the Institute of Materials Science and Technology that the report you submitted last week was anti-resistant.
The tensile strength is 1410 MPa. Is the test wrong? Or is it because a new alloy was made."
The production of titanium alloy with a tensile strength of 1410 MPa by conventional means is also a very good result, but it does not surprise Cao Dongming. At most, when the research needs to improve the strength of titanium alloy, the manufacturing process will be used as a basis.
refer to.
The titanium alloy with a tensile strength of 1560 MPa can be said to have a qualitative breakthrough in strength, and the degree of attention is completely different.
Peng Hui said, "We have improved the manufacturing process and also controlled some processes, such as temperature adjustment during the smelting process, cooling process methods, etc. Because we need to increase the temperature faster, we have also used some other means..."
Cao Dongming listened to the constant nodding and asked curiously, "How do you know? That can help improve the strength of the final product."
Peng Hui hesitated for a moment, then explained, "I have an old friend, Xia Guobin, who introduced me to Wang Hao from Xihai University. Wang Hao, you know, right? He is the one who is often in the news, a mathematical genius."
"I've heard of Mersenne prime numbers." Cao Dongming nodded.
"Yes! That's him."
Peng Hui continued, "Professor Wang Hao is not only doing mathematical theoretical research, he is also a top data mining expert, helping us analyze the experimental data and draw some conclusions. We will improve the processes and processes based on the conclusions.
"
"Professor Wang Hao has made a great contribution to the completion of this research. I also ranked Wang Hao second on the list of people who reported the results this time."
The second place is already the highest.
Peng Hui is the applicant and person in charge of the project, so he must be ranked first. No matter how great the contributions of others are, they can only be ranked second.
Cao Dongming was a little confused when he heard this. He thought about it carefully and said strangely, "I remember that last week, I saw Wang Hao in the investigation report on the interruption of a titanium alloy project of the Aviation Group. He was doing data work.
, but it seems that he does not understand materials science and did not find the error in the reported experimental data. How..."
"Are you sure you're not mistaken?"
"Is it Wang Hao, who got a doctorate from Donggang University and was fired from Donggang University?"
Peng Hui actually laughed and said with great certainty, "It's that Wang Hao!"
"Professor Cao, you don't have to doubt it. There was such a big fuss some time ago, and you should have heard about Donggang's dismissal of Wang Hao, right?"
Cao Dongming nodded as he listened.
"Donggang University did not investigate carefully before dismissing its faculty and staff. This kind of thing can be done. The report submitted pinned the problem on Wang Hao. What's the big deal?"
"The projects at Donggang Alloy Laboratory have been interrupted, who cares about that?"
"Right."
Cao Dongming thought for a moment that this was indeed the case, and he suddenly became more interested in Wang Hao's analysis work. "Professor Peng, can you take a look at the data analysis report? I want to go through the entire R&D and manufacturing process.
"
"Of course, no problem, please come this way."
Peng Hui said and took the lead towards the data analysis office.