Top Student

After having many times of experience in carrying out projects independently.

Xu You is used to putting the starting point of thinking at a relatively high level.

This was a way of thinking that Xu You had never had before when he was doing competitions.

When we give you a clear problem, all we need to do is to solve the problem according to the conditions of the problem.

Even though the difficulty of the questions varies, there is no difference at all.

And in actual scientific research work.

There was never a fixed issue.

Choosing a topic is a very delicate matter in itself.

Of course, Xu You didn't stop working now.

In the state of deep learning, Xu You can think about another problem while doing simple work.

In fact, nickel-based high-temperature coating, as a commonly used titanium alloy coating, does not have any problems in itself.

Because the nickel-based alloy coating has high bonding strength, good wear resistance, and excellent corrosion resistance.

But at the same time, nickel-based alloy coatings have their own limitations.

Due to the difference in the diffusion rate of elements in the nickel-based alloy coating and the substrate, the resulting difference will cause Kirkendall voids.

As a result, the coating becomes unstable and the bonding strength between the coating and the substrate decreases.

Xu You thinks that maybe you can think about it and try to change another material.

In Xu You's mind, he quickly thought about various materials that might be used as coatings.

Because Xu You had specialized in the research of metal materials in Xuzhou before, and he was quite familiar with the properties of various materials.

And recently at the launch center, Xu You also read a lot of space-related books, and he has a good understanding of a lot of space knowledge.

"That's right, Aluminum!"

At this time, Xu You suddenly remembered the familiar metal element "aluminum".

At the beginning of superconducting experiments, Xu You proposed that aluminum clusters may have high-temperature superconducting properties.

For the element of aluminum, Xu You is very familiar with it.

Xu You thought of using aluminum as a coating because aluminum can be oxidized at a certain temperature to form a dense Al2O3 oxide film, which can effectively protect the substrate in theory.

Of course, if you just use pure aluminum as a coating, the effect will definitely not be so ideal.

Such a simple solution, if feasible, would have been done long ago.

If you want to have better coating properties, you have to think from the direction of aluminum alloy.

At this time, Xu You had a new idea.

"If the coating is prepared from the direction of titanium-aluminum alloy, it may be a more ideal direction."

Titanium-aluminum intermetallic compound is an emerging high-temperature structural metal material.

Because the chemical composition difference between the titanium-aluminum coating and the titanium alloy substrate is relatively small.

At high temperatures, the degree of interdiffusion between the coating and the substrate is also minimal.

This will make the oxidation resistance of the titanium-aluminum coating very good.

Moreover, the aluminum element can also play a role of fine-grain strengthening, which can improve the thermal stability of the titanium alloy.

Thinking of this, Xu You felt that he could try to use titanium-aluminum alloy instead of nickel-based alloy in the software to conduct a new simulation experiment.

Of course, it is a lot of work to simulate with a new material.

If the nature of the material cannot be fully reflected in the software.

The effect of the simulation will be very poor.

In order to present the properties of the titanium-aluminum alloy material as accurately as possible, Xu You thought of his father Xu Zhou again, so he asked Xu Zhou for help.

"Professor Xu, have you ever made titanium-aluminum alloys?"

"I've done it, a new type of material. Why, this material is going to be used in aerospace?"

"Please forgive me for not being able to reveal too much information to you. If it is convenient, can you send me some detailed reference materials?"

"Well, of course there is no problem."

Xu Zhou faintly felt that when Xu You talked to him this time, his attitude was more polite than before.

Naturally, Xu Zhou would not refuse such a trivial matter, let alone his son asking him for help.

"By the way, my paper will be published in "Science" soon. Thanks to your theoretical model and functional formula, otherwise, I would never be able to write this paper. Wait until I come back and cook something delicious for you." !"

"Where, it is my honor to help Professor Xu. I can't wait to taste Professor Xu's craft."

Although Xu You's words were full of politeness.

But Xu Zhou always felt a little weird.

"Could it be that... after staying in the system for a while, everything has become official?" Xu Zhouxin said.

But compared to the arrogance and domineering aura before, Xu Zhou felt that this was quite good.

After receiving the materials from Xu Zhou, Xu You used his spare time to start the simulation of new materials.

Although the work in the group itself is already very hard.

However, relying on his deep learning status and super energy, Xu You squeezed out some time and gradually perfected the simulation part of the new material.

The comparison with real experimental data proves that Xu You's simulation effect is still very good.

In the simulations, the titanium-aluminum-based alloy coating performed well, but it has its own problems.

In binary titanium-aluminum-based coatings, when the service temperature exceeds 850 °C, the oxidation resistance will also be seriously reduced.

In order to confirm that the conclusion of this simulation is correct, Xu You specially asked Xu Zhou to help him to conduct an experiment.

"Professor Xu, is it convenient for me to do some experiments? It's the kind that is not beneficial, and it needs to be kept out of publication for the time being."

Xu Zhou was in a very good mood because he just posted an article on "Science", and he must try his best to satisfy Xu You's request.

"It's okay, as long as the budget is not too large, it's fine. Dad, I have a lot of money now, so don't worry about it if you have anything to do."

Xu Zhou knew that the subject Xu You wanted to do was certainly not an ordinary subject.

Even if it may not be published temporarily, the value in the future is likely to be very large.

After Xu You explained his idea to Xu Zhou, Xu Zhou quickly started the experiment.

After obtaining the experimental results, it also proved that Xu You's simulation conclusions were basically correct.

"Xu You, in binary TiAl-based coatings, there are strict requirements on the amount of Al. At around 850°C, the oxidation resistance of the coating begins to drop sharply."

"Thank you, this is very close to my prediction."

After reaching such a preliminary conclusion, Xu You did not go to discuss this matter with Shen Ye or other staff members of the launch center.

Xu You knows that such a conclusion cannot be immediately applied to the application of aerospace materials.

After all, this is not a university, and the purpose is not to publish papers, but to apply them.

Xu You still needs to draw more valuable conclusions before he can consider the next step.