From all-round academic master to chief scientist - Chapter 152 The surprise of the two academicians

The experience gained by using Truth Point is quite perfect. It is a feeling as if everything is understood and the truth is filled in the brain.

Based on this knowledge, Lin Xiao quickly wrote down all the mathematical models in his mind. The next step was to input these things into the software.

This was a pure test of hand speed. Lin Xiao wrote the data into the computer one by one. First, he had to start with the unit cell. The unit cell is the most basic geometric unit in the crystal, which can completely reflect the atoms or structures inside the crystal. The chemical-structural characteristics of ions distributed in three-dimensional space, so through the calculation of microscopic unit cells, the macroscopic properties of the material can be simulated.

Soon, Lin Xiao established this new titanium alloy material.

“Ti-Al-Zr-Nb…”

“Is it actually such an ingredient?”

He looked at it carefully, and then increased the number of unit cells to more, adjusting the total number of atoms to more than a hundred.

The more atoms there are, the more intuitive it seems. However, the more there are, the higher the computing power requirements of the computer. For example, for some composite materials, a system contains tens of thousands of atoms, which may require the use of supercomputing. of help.

“However, the arrangement of these atoms is also very unique, and it should be a single crystal directional solidification process technology.”

Single crystal directional solidification technology is currently an important process in the world for casting high-temperature metals. It allows metals or alloys to directionally grow crystals in the melt, thereby eliminating lateral grain boundaries. Simply put, it can improve the unidirectional mechanical properties of materials.

For example, the turbine fan blades of an aerospace engine will generate huge centrifugal force when rotating at high speed. If the metal strength cannot provide the strength to resist these centrifugal forces, then the fan blades will obviously be broken into pieces.

Improving the unidirectional mechanical properties through single crystal directional solidification technology can enhance the material’s resistance in this regard.

However, Lin Xiao does not need to worry about these process matters for the time being. Moreover, he has checked the information before and found that Huaguo’s technology in directional solidification is still good, especially the directional solidification technology of TiAl alloy, which is also patented. Belongs to a leading position.

He just creates the materials and lets others come up with the solutions.

As long as the computer simulation results are satisfactory enough, people from all over China’s materials industry will help him figure out how to design the production process of this thing.

Then, he continued to simulate using various software, using as much software as possible to get more simulation results.

As long as most software can prove that his conclusion is correct, then he is confident that Academician Chen is willing to give it a try.

Of course, this also takes a lot of time.

…

In this way, time passed quickly.

A week later.

In Research Room 4.

“Old Chen, I heard that your materials have been produced?”

A man walked in and said to Chen Bao inside.

A smile appeared on Chen Bao’s face: “Old Cao, we have basically done it. It depends on whether your Aviation Development Group wants to do it or not.”

This person’s surname is Cao, and his name is Cao Zhong. He is an academician of the Academy of Engineering and an expert in aerospace engines. He has led the development and delivery of a variety of aerospace engines and is a leader in domestic aerospace engine research and development.

He is also an important figure in the Aero Engine Group. The investor in this project like Chen Bao is the Aero Engine Group.

Cao Zhong and Chen Bao have a good relationship. A few days ago, I heard that the titanium alloy material Chen Bao developed had good performance, especially in terms of creep resistance, which met the planned requirements for the engine wall plate, so I ran over to take a look.

“Haha, your materials are good. We definitely want your materials. At least we have invested several million in your research team.”

He sat next to Chen Bao and looked at the things on the computer.

“That’s true.” Chen Bao smiled.

Investing so much money in research and development is not just about hoping to reap results, but it is basically casting a wide net. What you can harvest in the end can only depend on luck.

“How is the other research and development going?” Chen Bao asked.

“Sigh, it’s not ideal. To be honest, this is the only good news I’ve heard in a long time.” Cao Zhong shook his head and sighed, “The deeper we go, the harder it is to leave. I don’t know how the turbofan 15 was developed back then.”

“It’s just developed like that. Let’s work together and do it together.”

“That was in the past, but now people are impetuous, and people who study compressor disks and fan blades have little motivation.”

“This thing is really difficult to fix.” Chen Bao shook his head, and when he said this, he smiled and said: “By the way, do you know Lin Xiao?”

“Lin Xiao? Is that the young man who proved Goldbach’s conjecture?” Cao Zhong easily thought of this person, and then sighed: “This young man is incredible, especially in mathematics.”

Chen Bao smiled and said: “He is in my research group now. He asked me once before if I could improve the creep resistance of this material by 100%. I told him I want to build it directly on the turbine fan blades.”

Hearing Chen Bao’s words, Cao Zhong was stunned: “What? He came to you? Researching materials? Is he actually in the mood to do this kind of research?”

“What happened to the research materials?” Chen Bao said angrily, and then said: “It’s a coincidence. I also wanted to get to know him at that time, so I thought about inviting him to my research group, but I didn’t expect that he actually came over. , and then he performed extremely well. Otherwise, this genius is a genius, especially since he has studied computational materials for several months. I admire his current level. As for the new material we recently developed, He also contributed a lot in the process, otherwise, we would have been able to do it so quickly without even thinking about it.”

“Studying computational materials science? That is indeed suitable for someone like him who is good at mathematics.” Cao Zhong said: “However, I feel that he is still more suitable for mathematics.”

Chen Bao smiled: “If you don’t use common sense to study some people, maybe they can succeed?”

“Let me tell you, Lin Xiao is still at the data center and wants to continue to optimize our model and create better materials.”

Cao Zhong was stunned: “So…serious?”

Seriously, to put it nicely, at worst, it’s just a tough guy.

If you can achieve your goal and still continue to work on it, isn’t that just being stubborn?

“Haha, young man, let’s try it. You can’t let others try it. If he can really achieve something, then I will definitely go over and help him.”

“Where is he? I’m going to take a look now. I happened to know him. It proves Goldbach’s conjecture. It’s incredible.”

“I’ll stop by and have a look too.”

Chen Bao said: “I haven’t looked at the situation on his side these days.”

Although he told Lin Xiao before that he would not provide much help, he could not provide no help at all. That would be a bit unkind.

Afterwards, Chen Bao and Cao Zhong came to the data center and found the computer room where Lin Xiao was located.

Lin Xiao was the only one in the computer room, and Huang Haoran was not there. After all, Huang Haoran couldn’t stay by Lin Xiao’s side all the time. Lin Xiao himself was embarrassed to let Huang Haoran stay here all the time.

“Lin Xiao, how are you?”

Chen Bao asked aloud, but Lin Xiao seemed to have completely focused on the screen in front of him and did not hear his words.

Chen Bao and Cao Zhong looked at each other, which was indeed quite serious.

Then, they walked behind Lin Xiao and took a look at what was displayed on the screen.

After seeing this, Chen Bao’s eyes suddenly became serious.

This atomic model… fully conforms to the characteristics of the directional solidification process, and there are no lateral grain boundaries.

Lin Xiao made this…is it the material of turbine fan blades?

Shouldn’t he be working on the material for the engine wall panels?

Isn’t this a mess?

Chen Bao frowned, a little angry in his heart. If Lin Xiao continued to research and optimize according to their successful TiAl alloy model, he would support it. Bringing out the old and bringing out the new is also to accumulate experience, but Lin Xiao’s current direction is somewhat inconsistent. That makes sense, isn’t this a waste of money and time?

He decided to have a good talk with Lin Xiao later.

However, at this moment, Lin Xiao suddenly clicked a button on the software. The function of this button was to simulate and calculate the theoretical properties of the material.

This software simulates and calculates the properties of the material based on molecular dynamics, and then calculates the theoretical mechanical properties of the material at a macroscopic level.

Soon, the software began to mobilize the computing power of the computer to run.

After a while, the results came out.

Looking at the various data above, Chen Bao was stunned, and Cao Zhong next to him also widened his eyes.

The strength of this material…

Was there an error?

Cao Zhong knows some of the country’s confidential data on materials, such as the strength of the turbine blade material in the turbofan 15 engine mounted on the J-20.

The calculation material software’s evaluation of the strength of this titanium alloy is actually not much different from the strength of the turbofan 15 engine turbine blade material, and the density of this titanium aluminum alloy is even lower.

Low density means low weight. For engines, another important indicator is the thrust-to-weight ratio, which is the comparison of thrust and engine weight. The higher the thrust-to-weight ratio, the stronger the engine performance. The turbocharger on the J-20 The thrust-to-weight ratio of the Fan 15 engine is about 10, while the thrust-to-weight ratio of the F22 is above 10.

Therefore, once Lin Xiao’s material can really achieve this kind of strength and density, then Cao Zhong is almost certain that it can directly replace the material currently used on the turbofan 15 engine blades.

Suddenly, Cao Zhong realized that Lin Xiao should be studying engine wall panels. This material could be used on turbine fan blades. This was almost certainly due to a software calculation error.

He couldn’t help but shake his head, this kind of software is too cheating, right?

However, unlike him, Chen Bao was extremely surprised at this time.

Perhaps Cao Zhong did not study materials and had not used these software, so he did not see that Lin Xiao designed fan blade materials, but Chen Bao knew that Lin Xiao designed fan blade materials.

Although computing software is sometimes not so reliable, it is not too outrageous.

Calculating based on first principles, the probability of a situation where the actual intensity is only half the calculated intensity is too low.

Doesn’t this mean that Lin Xiao’s material has every chance to be given a try?