"If these materials can pass your extreme tests and the data is ideal, they can be directly connected to the factory and put into production!"
"Okay, okay. I'll arrange it as soon as the materials arrive and send you the latest data as soon as I have it. I sincerely invite you to become the chief consultant for WS-15 and help us make it even better!"
The position of chief consultant is second only to that of chief engineer. Before this, Yang Wei had never offered it. But now, Yang Wei only wanted to repay Wu Tong with the best conditions he could provide.
If the WS-15 generation had not been finalized during its difficult development two years ago, he would have wanted to give the position of chief engineer to Wu Tong.
"Mr. Yang, you're too polite. Without the solid foundation you laid, there would be no basis for my deduction. I'm just standing on your shoulders and doing some theoretical deduction work!"
Even without her, with Ms. Yang's tireless and unremitting research efforts, it might not be impossible to achieve this result. She just did her best to speed up the process.
"Actually, I should be thanking you for the trust and authority you granted me, allowing me access to confidential data. I've learned a lot in the process. It's like I've been able to integrate and master all the things I'd previously learned in a disorganized way. I should be thanking you!"
As for the core data of WS-15, there are few sources in China that can provide such a comprehensive overview.
This involves knowledge in many areas. During the six months since Wu Tong came to Peking University, he has attended many classes. In addition to basic mathematics, he has covered everything from physics to chemistry, from materials to engineering.
Studying and researching WS-15 materials is also an improvement of Wu Tong's studies in these subjects. Deducing and improving on this basis is equivalent to special advanced training. Wu Tong has truly gotten started in these subjects.
Especially for materials, Wu Tong got the list of advanced study books carefully compiled for her by Mr. Cheng, and repeated the preparation process. Without the tension of the first preparation, Wu Tong began to conduct intensive study whenever she had time. Day by day, her understanding of materials science became more and more profound, which was incomparable to before.
If nothing unexpected happens, with continued research and study, materials science may become the most superior subject after Wu Tong's mathematics.
Not everyone who reads the information can have this ability to sublimate. Wu Tong’s talent is the most critical point.
Considering Wu Tong's successive world-class achievements in mathematics, perhaps she saw this as commonplace, a skill accessible to everyone? It seemed that a certain student's perception might be a bit biased, but it didn't matter, and Yang Wei didn't emphasize it.
After signaling the assistant engineer to continue verifying, Yang Wei hurried back to the office and loaded the encrypted document that Wu Tong had transferred to her.
He then turned to Wu Tong and discussed some of the questions they had about the research and preparation process in recent days, as well as the process and principles of Wu Tong's material preparation.
Aircraft engines are difficult, and blade preparation is definitely the first priority.
He did not fully understand the key points and difficulties here, pretended to know everything, and hurriedly arranged and prepared the test, which could easily lead to disaster and waste Wu Tong's efforts.
Wu Tong carefully explained the basis of her deduction at the time. After receiving guidance from Academician Xie and supplementary courses in materials science, her theoretical reserves were rich and she could use scientific language to explain the absolute deduction that immersed her body and mind that night, but she only knew the results but not the reasons.
"Aircraft engine blades are generally cast from alloy materials, and single crystal technology is currently the most superior technical option. When the material is cast, molecules and atoms combine to form grains. These grains are initially arranged outward with the crystal nucleus as the core."
Yang Wei nodded and explained the difficulty: "Because there is no external force, the arrangement will be chaotic and irregular, and there will be broken fracture zones between the grains, resulting in inconsistent melting points and force-bearing capacity in different parts of the crystal.
Due to the non-uniform distribution of this shape, two difficult problems arise here. The first is that the various parts of the entire engine blade are still subjected to uneven forces. The second is that some parts will naturally bear much more heat than other parts.
When made into engine blades, they will instantly break and disintegrate due to the high temperature environment over 1500°C!
"Yes, Mr. Yang, you are an expert in aero-engines. Therefore, the engine blades I deduced are single-crystal blades! The arrangement of the grains in these blades must be very orderly. On this basis, I deduced and designed a new nickel-iron material model. Under certain conditions, it will perform very well in terms of temperature and mechanical properties!" Questions and answers extended each other, and Wu Tong and Yang Wei were very engaged in the discussion.
"This problem is not so easy to solve. Most alloy materials have a low melting point and cannot withstand high temperatures above 1500°. The interior of the single-crystal blades of an aero-engine must also be made hollow with various grooves, right?" As the chief designer of WS-15, Yang Wei has been deeply engaged in this area for many years and knows the difficulty best.
Only by simultaneously increasing the melting point and strength of the alloy material can truly qualified single-crystal engine blades be produced. Otherwise, they wouldn't have been stuck for so many years. The numerous material difficulties were also a crucial factor.
"Yes, based on the atomic and molecular sequence, I transformed and deduced the metal rhenium that is suitable for enhancing the financial store and strength."
Wu Tong's absolute direction and absolute deduction allowed her to screen and determine that this key material was metal rhenium.
The melting point of this metal is as high as 3180℃, and its tensile strength exceeds 1172MPa, which is equivalent to bearing a weight of 117 tons per square centimeter without deformation.
In addition, the most amazing thing about this metal is that it basically does not expand or contract when switching between high temperature and rapid heating and cooling conditions. The engine nozzle made of this material can withstand 100,000 thermal fatigue cycles, making it a good choice for aviation materials.
However, rhenium ore is rare and precious. Like titanium, no company or even country can afford to use rhenium metal to fully build blades. Wu Tong established a mathematical model based on the right material and combined his abilities to deduce the most appropriate material ratio.
"I rearranged the molecular atomic order, retaining the advantages of each material, such as titanium's high resistance, aluminum's lightness, nickel-iron's corrosion resistance, and rhenium's high-temperature resistance and thermal cycle fatigue resistance. This resulted in the most superior material currently available, at a relatively low cost, the T5 nickel-iron alloy blade material."
After receiving Wu Tong's precise guidance and answers, Wu Tong took the opportunity to ask Yang Wei some questions about engineering dynamics. After they exchanged ideas, they both hung up the phone contentedly.
High temperature resistance of 2400°, tensile strength, corrosion resistance, fatigue resistance of 1710MPa, and light weight... There is no more suitable blade material than this. Seeing the detailed data of the advantages of T5 alloy, Yang Wei's blood boiled in an instant, and he returned to the passion designed by WS-15 back then, or even higher!
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