From Almighty Scholar to Chief Scientist

Chapter 149 Whoring system for nothing?

Computational simulations of the new material will soon begin.

A few days later, Lin Xiao came to the Institute of Aeronautical Materials again, but instead of the previous No. [-] research room, he went to the material data center in the institute.

Here, the computing power of the computer is higher, and it is safer, avoiding the possibility of being monitored by the outside world.

The country on the other side of the Pacific has never lacked cyber surveillance of China, especially research on this kind of defense technology.

Even when they check the documents, they need to hand over to professionals to help them do the research, so as to prevent the documents they have checked from being caught by foreign countries, which will eventually lead to the leakage of the research content, and even the final research results may be inferred by the other party, or even carried out. copy.

All in all, this kind of research requires safety precautions.

"Okay, I won't say much else, Lin Xiao, let's build a model now."

Sitting in front of the computer, Chen Bao said to Lin Xiao.

"it is good."

Lin Xiao made an 'ok' gesture.

"Well, Xiao Huang, bring the data over here."

Chen Bao greeted the back.

After Huang Haoran responded, he handed over their data to Lin Xiao and Chen Bao.

Lin Xiao and Chen Bao have also opened the relevant software and started using it.

To carry out simulation calculations based on existing materials, it is first necessary to clarify the various structures of their materials.

"Our γ-TiAl alloy mainly has two structures, L1o and B2. Lin Xiao, you start with the L1o structure, and I will build the B2 structure."

"Okay." Lin Xiao responded.

Looking at the information from the side, [L1o type lattice structure, lattice constant a=b=3.984, c=4.065A, space group is tetragonal crystal system of p4/mmm].

Enter the relevant data, then establish the atomic coordinate system, and then replace some of the atoms, mainly with other metal elements.

Then the software will use the characteristics of these atoms, etc., to approximate whether their properties can meet their requirements.

Just like that, Lin Xiao worked on it, and a few graduate students stood behind him, watching Lin Xiaoxiu 'operate'.

Of course, it's just inputting data now, not a show operation.

The real show operation is below.

Using software, the first-principles pseudopotential plane wave method is used to select the standard pseudopotentials of different metal elements to describe the interaction between ion real and valence electrons.

Seeing that Lin Xiao entered more and more data, the people behind him also became more and more at a loss.

They have never learned how to use this thing, of course they will be at a loss, but at this time they also have to express their amazement in their hearts, Lin Xiao has only learned it for a month, and he is so 6, what kind of learning efficiency is this?

outrageous.

It is too shameful for them to be ordinary postgraduates who graduated from Beijing University, Qinghua University, or National University of Science and Technology, and then come here to study in graduate school.

But soon they calmed down. Anyway, this is computational materials science. Although it sounds very advanced, and sometimes supercomputers are used as an aid, they may not be able to come up with anything. They are honest Just do your own experiments on the spot, which Lin Xiao can't compare to.

And when the simulation calculation results are obtained, they have to design the process, and Lin Xiao will watch them show off the operation.

So they stopped trying to compare with Lin Xiao and watched quietly.

Time passes quickly. Although computers are convenient, it is not convenient for people to use them, and it takes a lot of time.

Even when it was time to eat, Lin Xiao and Chen Bao would stick to their posts, and other graduate students would be responsible for bringing them meals from the cafeteria.

What I brought was a box of rice, a box of rice, and another box of mixed potato shreds, green vegetables and twice-cooked pork.

Lin Xiao has no requirements for food. Except for bitter gourd, he is basically not picky about food. He finished his meal quickly, and then continued to stay in front of the computer, performing various simulations.

In this way, from nine o'clock in the morning, they worked until nine o'clock in the evening.

Young Lin Xiao is fine, but Chen Bao, a man in his 60s and [-]s, has been so persistent. After seeing it, he secretly admired it in his heart.

This is probably a real scientist, who will dedicate his life to scientific research.

Especially Chen Bao, a scientist who has provided great assistance to national defense technology.

Although for people like them, this is just their interest, and they are happy to do this kind of thing, but people who enjoy the stability brought by them in silence should also express their gratitude to them in their hearts.

Until 09:30 in the evening.

"Okay, let's stop here today, Lin Xiao, how do you feel? You are quite familiar with it."

Chen Bao stopped his hand operating the mouse, stood up and stretched, then asked Lin Xiao with a smile.

Lin Xiao said OK, and said with a smile: "It's okay, I also tested it myself a while ago, and modified the GDL-4 steel."

"Oh? How's the result? Do you want Xiao Huang and the others to try it out for you?"

Lin Xiao waved his hands quickly, and said dumbfoundedly: "No need, no need, I just tried it casually, maybe it's some kind of waste."

"Hehe, maybe it will be successful?"

Chen Bao waved his hand: "Our business was called alchemy in ancient times. No one can say for sure about luck."

"Okay, that's it for today, let's continue tomorrow."

……

Continue tomorrow and the day after tomorrow.

About ten days later, Lin Xiao and Chen Bao modified the unit cell structure no less than eight times after sewing and repairing. Sometimes their models would directly crash in their software, that is, their A model was judged unsuccessful by the software.

However, until the ninth time, I finally succeeded in creating a material model that can satisfy the physical interpretation. According to the calculation simulation, the creep resistance of this material should be able to increase by about 20%.

Then it is to design the relevant production process according to their model.

This has nothing to do with Lin Xiao, unless he directly uses truth points. However, since Chen Bao and the others can directly design how to produce this thing, there is no need to spend truth points.

Time passed quickly, from March to April.

Another day, in the foundry laboratory of No. [-] research room.

"It's out, it's out."

Huang Haoran yelled, and then they quickly ran to the electric arc furnace, poured the molten titanium alloy water into the consumable congealing shell furnace next to it, and poured it into shape. This kind of furnace can effectively prevent the crucible from polluting the active metal liquid.

After cooling down, finally, a titanium alloy metal rod appeared in front of them.

Next, it's back to the material testing laboratory next door for creep performance testing.

However, the results disappointed them.

This new material, which took them another half a month to come up with, has a big gap between the actual creep resistance and the creep resistance calculated by their previous simulation.

Although it is also stronger than the original material, it is only a little bit stronger.

At this point, even 1% has not been reached, and this obviously does not satisfy them.

"Continue to modify it, let's try it out and add some other elements into it."

Regret appeared on Chen Bao's face, but he quickly recovered and said.

If they were lucky, they might have met their expectations directly in one go, but their luck is obviously not very good now. Of course, being able to be a little bit stronger is at least better than not being stronger at all.

So next, they returned to the computer room and continued the simulation.

Lin Xiao looked at the mathematical model displayed on the computer and felt troubled.

Next, what should we do?
Suddenly, he remembered the system.

Is it possible to see if your research direction is correct through the system's quotation of truth points?
Then you can go whoring for nothing?

Thinking about it this way, his eyes lit up, it seemed feasible?

So he immediately asked in his heart: "System, if molybdenum atoms are used to replace aluminum atoms, can the creep resistance be improved by 50.00%? How many points of truth do you need for this question?"

System: "This question requires 13 truth points."

Lin Xiao then asked: "What if zirconium atoms are used instead of titanium atoms?"

"This question requires 13 truth points."

"It is the same?"

Hearing this answer, Lin Xiao frowned.

In a single unit cell, the difference caused by replacing aluminum atoms with molybdenum atoms and replacing titanium atoms with zirconium atoms should be very large. How can the truth be the same?

He used his 4.35% brain to think carefully, and suddenly guessed a possibility, so he asked again: "How can we increase its creep resistance by 50.00%?"

"This question requires 13 truth points."

The sound of the system sounded as usual.

Now, Lin Xiao couldn't help guessing.

The system does not care about the distance from the direction to the target, but only the absolute distance between the target and the current stage.

The absolute distance is the price it ends up giving.

Just like if he goes north from the Institute of Aeronautical Materials, he may arrive at Beijing University in a few kilometers, but if he goes out and goes south, he has to go around the world, but the distance between his starting point and destination The distance is still so much.

Therefore, the idea of ​​judging the success of the research direction based on the quotation given by the system is basically useless.

Unless you spend some time doing research in this research direction, and then determine whether your direction is correct through whether the system quotation has decreased.

If this is the case, you can still go whoring for nothing, at least you can confirm whether your direction is correct in time, and avoid entering a dead end, but it does not rule out that after research, you already know whether the direction is correct, and there is no need to ask when the time comes.

Shaking his head, Lin Xiao gave up on the idea of ​​a prostitution system.

However, it takes 50.00 truth points to increase the creep resistance of their TiAl alloy by 13%, so how much does it take to increase it by [-]%?

He immediately asked this question in his mind.

"This question requires 29 truth points."

29 truth points!
Lin Xiao was shocked, it was so expensive!
But he thought for a while, and asked again: "If you can improve its strength, oxidation resistance, volume stability, and high-temperature structural stability to a certain extent, how much will it cost?"

"This question requires 44.2 truth points."

Only increased by 15.2 truth points?

Lin Xiao thought about it carefully, probably because there will be repetitions between meeting these requirements, for example, if the creep performance is strong, the high-temperature structural stability will also become stronger.

However, this 44.2 truth point... doesn't seem unacceptable to him?

He suddenly asked Chen Bao next to him: "Academician Chen, what if we can improve the creep resistance of this thing by [-]%?"

"One hundred percent? Good guy, I think it's good to increase it by 30.00%. It will definitely be no problem to be a candidate material for our turbofan-15 engine wall panels in the future. You have increased it by one hundred percent." , is it going to be built directly on the fan blade?"

(End of this chapter)