Take the in-planet vector engine currently being developed by Jiuzhou Technology as an example. Its thrust mainly comes from the high-temperature gases ejected after the inhaled air from the outside is mixed and burned with aviation kerosene.
The air inlet is the cold end component. Because the working environment is not harsh, it uses a special titanium alloy that has been successfully developed by the Titanstar department. It is light in weight and high in hardness.
For hot-end components that require high-pressure and high-heat work on the airflow to generate thrust, a large number of ultra-high-temperature alloys are required, and not only the amount of alloys is required, but also the types are required.
The four major hot-end components in aeroengines, combustion chambers, guides, turbine blades and turbine disks all require alloys with different properties that can withstand ultra-high temperatures. In addition, they are also used in weapons equipment, afterburners and vectors. The alloys on components such as engine nozzles also require different types of ultra-high temperature resistant alloys.
Regarding the high-temperature alloys for aircraft engine parts on the planet, Gu Qing is the main opinion controller of the data review team, because only he knows what "things" he wants to make.
The turbine speed of large and medium-sized turbofan engines must reach more than 19,000 r/min, which will cause the temperature in front of the turbine to reach more than 2,100°C.
In the in-planet aeroengine designed by the design department, the amount of ultra-high temperature resistant alloy accounts for more than 50% to 70% of the total weight of the engine.
The demand is huge and there are many types of needs, but it is impossible for Gu Qing, as an omniscient and omnipotent god, to directly provide formulas and processes to these research laboratory groups.
After all, it is impossible to explain this thing clearly.
Several teams in the research laboratory are industry leaders. Although we cannot say that they understand all the top international processes, everyone knows what they are doing.
If they could see these "weird" advanced technologies as soon as they came to Jiuzhou Technology, they would wonder if Jiuzhou Technology had a group of Nobel laureates working there.
After watching Professor Zhang leave, Gu Qing began a new round of disinfection and inspection before entering the laboratory.
The young man who was criticizing Professor Zhang not long ago immediately became much more humble when he saw Gu Qing wearing a special numbered lab coat.
When I just checked Professor Zhang's current situation, in the picture displayed by the SR1 glasses, this young man appeared very frequently. Almost every time he appeared recently, it was a "highlight moment."
Although the harsh treatment of this young man was not instigated by Gu Qing, placing such a careless person in the position of head of the research laboratory was a personnel transfer order signed by Gu Qing himself.
The young man's name is Sun Ke. He is 36 years old this year. He was once a partial-field talent admitted by a university under special circumstances. Later, he went to the United States for further study. When he was about to complete his studies, he happened to encounter the crisis of the semiconductor industry in Daxia at that time, so he resolutely gave up recruiting high-paying jobs. , ended his studies hastily, and returned to China to start working hard.
From starting a business to going bankrupt, "working" in several large companies, and then being recruited by Jiuzhou Technology, Sun Ke has always been engaged in materials-related projects, and has accumulated much deeper industrial knowledge than ordinary college talents.
Of course, what Gu Qing valued was not his knowledge, but his responsible attitude.
After bankruptcy, the company's assets were sold at a low price and the debt was insolvent. If you dare to shoulder the debt by yourself, but are unwilling to choose the path of company bankruptcy and personal safety, you have surpassed many people.
"How about it? Our company has several major project acceptance tasks this year. If there are any problems, they must be reported in time so that the company can mobilize resources in time to overcome the problems."
When Sun Ke heard Gu Qing's question, he did not choose to shake off the "useless" professor just now. Instead, he nodded and said: "At present, our laboratory does need to add some more professional talents. Mainly Our design is still relatively advanced, but the aircraft engines used on the planet use standards comparable to those in a vacuum environment.
For example, the requirements for turbine blades and guide vanes are higher than conventional requirements because the blade cross-sections are very thin, and the smaller the cross-section size, the lower the creep rupture strength, but it is easy to form cracks.
Therefore, the current limitation of this project is the development and use of single and double crystal materials. After all, to avoid patents, it must be developed again.
There are also several turbine engine design projects, and the guide vanes, one of the parts subject to the greatest thermal shock on these turbine engines, are also R&D problems.
Without advancement in materials, our overall project would come to a standstill. "
Having said this, Sun Ke paused and then chose to keep silent about this project.
After all, this is the [Vector Nozzle Materials and Cooling R&D Laboratory], not the company's materials R&D headquarters. Some information cannot be leaked here.
Gu Qing saw that the young man was so tight-lipped. He shook his head and snapped his fingers. After waiting for a few seconds, he saw Xuanwu reminding the establishment of the information barrier successfully in the display area of SR1 glasses. Then he said: "Now we can talk about other projects here.
I think your combination of material research and development and actual operation is still not enough. Although there is so-called data support and you have even worked on the front line, that is all in the past.
For materials with high strength and excellent thermal fatigue properties, as well as high resistance to oxidation and corrosion, you should start with the project of casting high-temperature alloys. After all, this is an important project that has been proven successful. It is the same as others. There is no shame in the path we take, as long as it is the right direction and we can walk faster and more steadily than others.
In the think tank's investigation, American Howmet and materials companies basically use IN718C, Rene220 and R55 alloys as guide blade materials, and these alloys are the results of the high-temperature alloy casting project.
In addition, the rear grate gear ring of the turbine guide of our Taihang FWS10 engine in Daxia is also made of oxide dispersion strengthened high-temperature alloy.
In addition to the blades, when you developed the materials for the turbine disk of one of our turbine engines, you have considered that the turbine disk is heated unevenly during operation. The rim of the disk bears higher temperatures than the center, resulting in a large amount of heat. This special case of thermal stress.
But you didn't go into the force detection more carefully. The tenon teeth of the turbine disk bear the greatest centrifugal force, and the stress they suffer is even more complicated.
Therefore, the alloy requirements for this component must have extremely high yield strength and creep strength, as well as good thermal and cold and mechanical fatigue resistance.
Not to mention the linear expansion coefficient, it must be small enough, the low-cycle fatigue performance must be high, and the notch sensitivity needs to be repeatedly reduced to strive for no notch sensitivity. "
Speaking of this, Gu Qing once again emphasized: "Use the Spiritual Realm Ecological Laboratory more often. If you have results in reality, you should also use the Spiritual Realm Laboratory to replicate it again, so that the server's data can continue to improve."
(End of chapter)
