The top student must be diligent.

Chapter 261 Two Methods
Xiao Yi warned himself in his heart that it would be better to have less of this kind of bad taste in the future, otherwise, like now, he would accidentally let the "bad taste" come upon him.

For the time being, he waved his hand and said, "Iris, there's no rush. Let me see the specific information of your materials first."

Hearing what Xiao Yi said, Wang Changhong smiled and said, "Okay, since Chief Xiao is concerned about our problem, let's go and take a look first."

Xiao Yi nodded slightly unnaturally to avoid being noticed.

Then, Wang Changhong took him to the sample room inside.

Along the way, Wang Changhong also said: "I'd also like to tell you about the main problem we are facing now."

Xiao Yi waved his hand and said, "Not for now."

"Just now in the car, Luo Mingya told me about the compatibility issues you encountered."

"The main problem you encountered is that the thermal expansion coefficient of the material is not well compatible with the materials in other parts, and the high-temperature creep performance also has some incompatibility issues, right?"

Wang Changhong shook his head helplessly: "It seems that girl has revealed all our secrets."

But what can I say about this?

After all, when getting in the car, they were the ones who drove Luo Mingya out and asked her to get in the same car with Xiao Yi.

Then he smiled bitterly and said, "Yes, that's basically the situation."

"To be honest, when we first developed this material, it was only a few years ago, and we celebrated it."

"As a result, we only saw that the basic properties of this new titanium-aluminum alloy were very good, but we ignored the key compatibility issues."

"Compared to another material we used before, this titanium-aluminum alloy is actually much better in terms of thermal expansion coefficient and high-temperature creep performance. Most importantly, the temperature it can withstand is nearly 200 degrees higher! It has reached an operating temperature of 1200 degrees."

"For turbine blades, 200 degrees is a huge improvement. I believe Chief Engineer Xiao is aware of this."

"But the problem is that when this material works at a temperature of 1200 degrees for a long time, its thermal expansion is even greater than before."

“And so there was a problem.”

Wang Changhong sighed.

"Think about it, can we easily give up the operating temperature of 1200 degrees? Especially with our updated cooling system, it can directly make the final turbine temperature reach 1700 degrees. At that time, our H-'s maximum cruising speed and ammunition load will be greatly improved."

"So we continued to study it for several years, trying to coordinate on this, but now..."

"It's difficult!"

"Difficult, difficult, difficult!"

Chief Engineer Wang sighed deeply.

Xiao Yi also shook his head with emotion.

That's the trouble with materials research.

The performance of this new material has indeed been greatly improved, but when it is used at the highest performance, the current problem will arise.

As for lowering the operating temperature of this new material?
Although this method can solve the problem, the problem is that wouldn't the effort they spent on researching this material be greatly wasted?

Therefore, Wang Changhong and his team were absolutely reluctant to waste the performance of this material, and therefore they have been striving for excellence over the past few years.

But unfortunately, they cannot change the structure of the engine itself for this purpose.

After all, the structure of the engine itself is also to serve the stealth performance of the entire H-20 bomber. Once the engine structure is changed, the overall stealth layout will have to be changed again, and the stealth effect may not meet the original requirements.

Even if it is achieved, the aerodynamic layout will change again, and then the entire aerodynamic layout will have to be reconsidered, which will be even more troublesome.

It can truly be said that a single move affects the entire body.

Of course, the main difficulty lies in the fact that this is a stealth strategic bomber capable of supersonic cruise.

The Americans don't, the Russians don't.

The existence of difficulties is inevitable.

"Okay, here we are."

We came to a door and there was a sign hanging on it that said "Sample Room".

After walking in, Li Zhenhai next to him walked forward and found a sample of their new titanium-aluminum alloy.

"And here's everything there is to know about this sample."

He took out another stack of A4 paper from the side.

Xiao Yi took them one by one and started reading the relevant information.

The name of this new titanium-aluminum alloy is TA1203, and 1203 represents its highest operating temperature.

Being able to withstand such operating temperatures for a long time already represents its strong performance.

You should know that the melting point of titanium is only 1668 degrees Celsius, and the melting point of aluminum is only 660 degrees Celsius.

Looking at the information, Xiao Yi's face showed a thoughtful look.

Of course, this is what Wang Changhong saw, but in fact he had directly entered into a state of mastering the materials.

He began to master the material and understand all kinds of internal information of this material.

Now that the material mastery has been upgraded, he can start simulating the material directly even if he does not need the detailed data of the material.

However, with detailed data on these materials, the simulation can naturally be more accurate.

Soon, after basically understanding the internal structure of the material, he withdrew from the state of mastering the material.

"Well, I already know some information about this material." Xiao Yi said, "Do you have any other more detailed information? For example, the structure of the engine, and some data from your previous experiments?"

"Everything is available."

Wang Changhong said, and then he took Xiao Yi to obtain various other data, including the overall appearance and structure of the H-20, as well as videos.

Looking at these materials, Xiao Yi also became quite interested.

Which boy isn't interested in fighter jets and bombers?

Back then, when he saw the promotional video about the H-20, he was also extremely surprised.

The sci-fi appearance of the H-20 also surprised him.

I never thought that one day I would be able to personally participate in the research and development of the H-20.

Of course, if you really want to count, he had already participated in the H-20 before.

This brings us to the MHT-1, a radar-absorbing material that he accidentally developed.

Then, another professor named Chen Weidong from the 603 Institute was attracted to come. Professor Chen Weidong was the leader of the weapons and design group of the 603 Institute. He took the MHT-1 away at that time and said that it would participate in the stealth layout of the H-.

It was also his first time to participate in the design of the H-20.

Of course, at that time I could only be said to have been indirectly involved, but now I am directly involved.

After getting the information, Xiao Yi began to analyze it.

Of course, just as he had thought before, the problem of material compatibility was not a particularly difficult problem for him. Because, after his BUFF was upgraded to level 7, the two skills of Material Mastery and Perfect Engineering could be used together.

Therefore, after reading the information, he could directly simulate the entire H-20 engine through these two skills.

And he did so.

While looking at these materials, I continued to outline them in their entirety in my mind.

Until finally, the complete structure was completely revealed before him.

Precise and full of aesthetics.

The combination of those turbines allows anyone to imagine the power they will unleash when they start turning.

Unfortunately, only Xiao Yi can see such a scenery.

Of course, it is precisely because he can see such an intuitive scene that he can solve such compatibility problems well.

With a thought in his mind, the engine built by perfect engineering began to run.

The turbine starts to rotate, and then a strong suction is generated from the air intake.

Xiao Yi directly provided air into the simulation space, and the air was directly sucked into the air intake.

After entering the air intake, it enters the compressor, where the air is compressed step by step, and the pressure and temperature continue to rise. The high-pressure air then enters the combustion chamber, mixes with the injected fuel, ignites and burns to form combustion gas, and the temperature reaches 1800 degrees Celsius.

Subsequently, the high-temperature and high-pressure combustion gas enters the turbine, driving the turbine blades to rotate at high speed.

Finally, these gases enter the tail nozzle, where the combustion gas is further expanded and accelerated, and finally ejected from the nozzle at a supersonic speed, thus providing powerful propulsion.

This brand new engine can easily provide more than 20 tons of thrust!

This is even greater than the thrust of the WS-15 engine that is already in service on the J-.

However, as Xiao Yi gradually zoomed in, the overall size became microscopic enough, and then he could see that as the temperature continued to rise, the blade material gradually expanded and had begun to cause interference and friction with other parts such as the casing.

And this problem will have a considerable chance of causing it to malfunction directly!
This is absolutely fatal.

Sure enough, as Xiao Yi accelerated the simulation speed, finally, about ten minutes into the engine's operation, the friction force exerted on the material finally reached its limit.

With a "click" sound, a crack instantly covered the entire surface of the receiver, but the support did not last long before it exploded with a "bang".

This is what happened in Xiao Yi's simulation space. If it happened in reality, even if it was just an experiment, it would be a big deal.

"The problem is indeed quite serious..."

Xiao Yi nodded slightly.

However, then, in the simulated space, time began to go back and finally stopped at the moment when interference friction began to occur.

Afterwards, his vision began to expand, and with the combined activation of the two abilities, Xiao Yi was able to see the microscopic details of TA1203 at this time.

The key issue now is how to find a way to further reduce the thermal expansion coefficient of this material, or to prevent interference friction from occurring between them.

Only in this way can problems be avoided.

After thinking for a moment, Xiao Yi's eyes suddenly lit up.

He already has the method now.

However, how to achieve it specifically still requires some thought.

At this time, Wang Changhong and others nearby saw Xiao Yi's reaction while looking at the information, and couldn't help asking: "Chief Engineer Xiao, do you have any ideas?"

Xiao Yi nodded slightly and said, "I have two ideas now."

"two?"

Several people were stunned for a moment. There are two methods?

Wang Changhong leaned forward and said, "I'm all ears."

The same was true for Li Zhenhai, and Luo Mingya opened her eyes wide and looked at Xiao Yi.

This problem stumped them for so long, but Xiao Yi was able to come up with two solutions after just looking at the information?
How can it be?

Xiao Yi said: "The first method will be slightly more convenient."

"I can make slight changes to the blades and surrounding materials without affecting the aerodynamic layout and stealth performance, so that the entire engine can meet the requirements after the thermal expansion of the new materials."

Upon hearing this method, Li Zhenhai couldn't sit still and asked in great surprise: "Chief Engineer Xiao, is it true?"

Xiao Yi nodded and said, "I am somewhat confident."

For Li Zhenhai and his team, it is very difficult to achieve this. They may have to go through more wind tunnel tests to accomplish this. But the problem is that to conduct wind tunnel tests, they have to build the engine, and every time they make a slight change, the time, energy and money they spend are immeasurable.

Although simulations can be performed on computers, the simulations cannot fully reflect the details. Otherwise, what is the point of building wind tunnels?
But for Xiao Yi, this problem is very simple. Perfect Engineering allows him to easily complete the experiment without spending too much time. Moreover, the simulated wind tunnel can be more natural than the artificial wind tunnel.

Therefore, Xiao Yi was confident that he could find another "zero point" through continuous modification.

"That's great! If you, Chief Master Xiao, can really handle it, I... I..."

Li Zhenhai said "I" and was so excited that he couldn't speak for a moment.

Wang Changhong, the chief engineer, was very calm. He patted Li Zhenhai on the shoulder and said, "Team Leader Li, calm down. Let's listen to Chief Engineer Xiao's second solution first."

Li Zhenhai finally recovered and said awkwardly, "I was really a little too excited..."

Then he looked at Xiao Yi again and asked curiously, "Then, Chief Xiao, what is the second method?"

Xiao Yi raised his eyebrows: "I wonder if you have heard of the precision magnetic levitation fluid control furnace?"

"Precision magnetic levitation... fluid control furnace?"

Several people were stunned.

Wang Changhong thought for a moment and said, "I seem to have heard of it. It seems that, Chief Engineer Xiao, this thing is the machine you developed to make the first wall material of the nuclear fusion reactor?"

Xiao Yi nodded: "That's right."

"So, the second method is to use a precise magnetic levitation fluid control furnace to produce TA1203, which can make the structure of the material itself more precise and stable, especially the degree of bonding between atoms, and become stronger."

"Perhaps, this will allow TA1203 to withstand higher temperatures and further enhance its thermal conductivity."

Hearing what Xiao Yi said, not only Li Zhenhai, but even Wang Changhong's eyes widened.

He slammed the table, startling everyone present, and then he asked, "Is it true, Chief Master Xiao?"

Xiao Yi patted his chest to relax, then nodded and said, "It's true."

"However, it is also more difficult. It requires the modification of a precise magnetic levitation fluid control furnace. After all, the length of the turbine blades is a bit long."

“How to use this machine to produce TA1203 also requires more complex programming.”

“So, it may take more time in the end.”

However, Wang Changhong didn't even think about it and said directly: "Let's do it!"

(End of this chapter)