The excitement of Peng Hui, Shi Guifang, Wan Yiming and others is justified.
They manufactured a new titanium alloy with a tensile strength that reached the world's top 1,400 MPa. At the same time, the manufacturing process was relatively simplified. It was indeed an exciting result. It can be said that the expected goals of the project research were achieved.
Titanium alloys are a field of materials that the world attaches great importance to. Many institutions are conducting relevant research, and there are also many types of titanium alloys.
Distinguished from the internal matrix structure, titanium alloys can be divided into α alloys, β alloys and (α+β) alloys.
In China, they are represented by TA, TC, and TB, each of which has several or more than a dozen models. In other words, there are as many as twenty types of standard titanium alloy materials sold on the market.
There are many types of titanium alloys, mainly related to their application directions.
In the application field of titanium alloys, it does not mean that the higher the strength, the better. In fact, if we just compare the strength, the highest strength of domestically produced special steel can exceed 2000 MPa, which can be said to be internationally leading, but that kind of steel
Without plasticity, processing and welding are big problems, and the application difficulty will be very high.
The biggest advantage of titanium alloys over special steels is that they are light because the density is relatively low. For the same volume, the weight is only about 60% of steel.
Because of its low density, titanium alloys are widely used in the aviation field. Many parts of aviation aircraft and military aircraft are made of titanium alloys.
However, the disadvantages of titanium alloy are also obvious. The biggest disadvantage is that it is expensive.
Titanium alloys are expensive not because of the low titanium content, but because the titanium element reacts very easily with many other elements at high temperatures. It will be very troublesome to get titanium out of other impurities, and in the end
When forming, it is often necessary to operate in an inert gas or vacuum environment.
Such a complicated operation means that the price of titanium alloy materials will be very expensive.
The laboratory uses refined titanium to make titanium alloys. Operations at high temperatures also need to isolate air. The process seems simple, but in fact, because it is a laboratory operation, only a small piece is made, and some need to be isolated.
The air steps are all performed in professional equipment.
The second disadvantage of titanium alloy is that it is difficult to process and weld.
There is an example that can directly illustrate that Amrican is a fighter jet called the 'Immortal Blackbird'. It can fly at a maximum speed of Mach 3 and is called the fastest aircraft in history. The reason why it can fly so fast is because
Thirty tons of titanium alloy were used, and most parts are made of titanium alloy.
However, this aircraft has a very obvious shortcoming, which is oil leakage.
Ameriken tried various methods but could not solve the problem because they had not mastered the perfect welding technology of titanium alloy at that time.
This is enough to show how difficult it is to process and weld titanium alloys.
However, at present, China has mastered high-end 3D titanium alloy printing technology, which can directly shape corresponding parts with 3D printing, skipping the welding process.
This is off topic.
The project carried out by the Metal Laboratory is the research on super-stressed titanium alloy materials. The purpose of their research is not to apply it, but to specifically study how to improve the strength of titanium alloys produced at "normal costs."
Internationally, the highest strength of titanium alloy can reach 1,700 MPa, but it is manufactured by abnormal means and cannot be widely manufactured at all.
When manufactured using conventional methods, the final compressive strength of the finished product can exceed 1,400 MPa, which is already a very high figure.
This project belongs to 'materials research' rather than 'materials application research'. The titanium alloy produced is not used to manufacture products, but to study conventional methods to manufacture titanium alloys and what processes can improve their strength.
This is of great reference value for application research on titanium alloy materials.
Other research teams working on targeted applications can improve the strength of corresponding titanium alloys based on their process references.
In other words, the manufacturing process is more important than the result.
This is why Ma Wenjun is worried about the results of other teams' research.
If the research of other teams has results, there will definitely be many experts who specialize in analyzing the manufacturing process and various data. Their alloy laboratories have done the same project, and even if it is suspended midway, the experimental data has been reported.
Comparing the two, it is very likely that problems will be found.
…
After the experiment was successful, Peng Hui and Shi Guifang talked a lot about Wang Hao, but he still didn't quite understand the excitement in the metal laboratory.
Because the final product produced has no innovation and no qualitative improvement in performance.
Isn’t scientific research meant to make qualitative breakthroughs? Isn’t it meant to solve unsolved problems?
After spending tens of millions of dollars and making little progress, it is really hard to find something exciting.
Wang Hao went back with some incomprehension. Perhaps there was another reason why he was not excited, because he was not involved in the project at all. He just made a small suggestion due to his good fortune.
While on the plane, Wang Hao began to count the harvest.
During this trip to Xijing Jiaotong University, I gained a lot of inspiration value. The corresponding task inspiration value increased to '79' points, which shows that I have a very good understanding of the experimental data.
This value has almost reached the peak of understanding of ‘experimental data’. Even if we study the experimental data again, it will be very difficult to improve even a few points.
When you have enough foundation, what is missing is analytical inspiration, which requires other means to obtain.
For example, research on data analysis methods, or feedback through teaching.
The latter is the easiest to achieve the goal.
Wang Hao missed his students a little. He couldn't wait to go to class, hoping to increase his inspiration value by more than 100 points.
After returning to Xihai City, he went home to rest for a day.
The next morning, Wang Hao came to school in high spirits, and when the time came, he went to class with 100% positivity.
"Probability Theory and Mathematical Statistics".
This course has entered the final stage, and when it enters the final stage, the difficulty of knowledge has also increased to the highest level, and some content involves knowledge that does not need to be mastered at the undergraduate level.
However, Wang Hao's explanation is still very detailed. He hopes that more students can understand and master it. Of course, it can also give back more inspiration value.
Teaching, feedback, mutual benefit!
After lunch, he immediately returned to the office in the complex building. After one class, he gained 20 points of inspiration.
For A-level difficulty research and development tasks, getting 20 inspiration points in one class can be said to be quite high.
This value confirms Wang Hao's previous judgment. Only with a sufficient foundation and a sufficient understanding of the experimental data can we obtain more inspiration values.
After opening the task system, he discovered something very embarrassing. The inspiration value of the task had reached 99 points.
"Only a little bit worse!"
The inspiration value is only 1 point short, and it's not just about data. He feels that he already knows an analysis method, but he is only missing the last step, but he can't get over it. It's like solving a math problem and knowing the rough solution.
I have an idea for the question, but problems arise at the beginning and I don’t know where to start to solve it.
Wang Hao could only bite the bullet and continue to analyze the data. After studying for more than an hour, there was no result. He somewhat understood why Zhang Zhiqiang often scratched his scalp.
Zhang Zhiqiang happened to look over and asked, "What's wrong, Wang Hao?"
Wang Hao sighed, "There is a question that I can't figure out."
"oh."
Zhang Zhiqiang agreed, turned around and continued to do his own thing.
Wang Hao continued to struggle with the problem.
Zhu Ping burst out laughing. She pointed at Zhang Zhiqiang and asked, "You guys are really interesting. Shouldn't you ask, do you have any questions?"
Zhang Zhiqiang immediately shook his head, "Wang Hao's unsolvable problems are all in vain for me."
Zhu Ping was stunned after hearing this, and nodded with deep sympathy. When she found Wang Hao looking at her, she immediately sat back down, turned her head and pretended to read seriously, as if to say, "Don't ask me."
,'Don't ask me'.
She even blocked her ears with her hands.
Luo Dayong got out of the state of 'thinking about life' and reminded him, "Don't do this. Don't worry, Wang Hao won't ask you."
Zhu Ping suddenly darkened her face and stared at Luo Dayong with gritted teeth.
Wang Hao burst out laughing when he saw this scene.
The daily life in the office is still very funny. I always feel that Luo Dayong is a comedian. He always gets the key point every time he opens his mouth and hits Zhu Ping's heart directly.
Hit, heart?
Wang Hao suddenly frowned while thinking, and the next moment the system prompted -
[Task 1, inspiration value +1.]
[Inspiration value: 100.]
I see!
To be continued...