Chapter 186 The first problem that needs to be solved
Ning Chen’s material was almost designed directly from scratch and is not closely related to other steel materials.
"Yes, it was almost designed directly. This is also a material design method that I mastered when I was studying iron-based superconductors."
Ning Chen was researching at that time When it comes to the "1144" type iron-based superconductor, the material design starts directly from the bottom layer based on the theory summarized and analyzed from previous experiments.
Tao Wei also understood Ning Chen’s method, nodded and said:
"Ning Chen, this material design technology is really a very innovative idea. If this method can continue to be extended to other types of materials, then the entire research on materials science may have disruptive effects. Changes. ”
“This method is still difficult to promote. It has very high requirements for the type of materials, and it must be very clear about the properties and mechanisms of the materials. ”
Determined. After realizing that Ning Chen's research results indeed had high application potential, Tao Wei was also thinking about what to do with Ning Chen's research results next.
"Well, Ning Chen, don't tell anyone else about this matter. Tomorrow I will find two steel material experts to come over and conduct a more detailed evaluation of this result."
“Okay, Academician Tao, I understand.”
The next morning, Ning Chen received Luo Fang's notice and came to Tao Wei's office again.
Ning Chen saw two unfamiliar faces sitting in Tao Wei's office. One of them was similar in age to Tao Wei, and the other was slightly younger, but at least fifty or sixty years old.
It seems that it is the steel material expert that Tao Wei found.
Seeing Ning Chen coming over, they both stood up and shook hands with Ning Chen very politely, which made Ning Chen feel that he was highly valued.
"Ning Chen, let me introduce to you. This is Academician Cheng Zhong and this is Professor Tian Shihao. They are both one of the top experts in the field of steel materials in China. Next, please tell me what you said yesterday. Let me tell you what I said again with these two experts.”
"Yes, Ning Chen, Academician Tao has already told us the general situation, but the more specific content needs to be explained by you personally so that we can better understand the content of your research." Cheng Zhong said.
After all, Tao Wei is not an expert in the field of steel materials, and this way of reporting will miss many important details.
Ning Chen was already prepared for such a situation. He took out his notebook and repeated what he told Tao Wei yesterday.
Cheng Zhong and Tian Shihao listened to Ning Chen's explanation very carefully, not daring to be distracted during the whole process for fear of missing any detail.
After listening to Ning Chen's story, Cheng Zhong and Tian Shihao both understood why Tao Wei was so anxious to find them.
"Ning Chen, from the theoretical point of view of your design of this steel material, this material will indeed have very outstanding properties. Not only is it stronger than any previous steel material, but it is also Excellent corrosion resistance, stress corrosion cracking resistance, fatigue resistance, microstructure, etc.”
Cheng Zhong gave a high evaluation to the steel material designed by Ning Chen and was able to obtain it. The recognition of experts like Cheng Zhong is enough to prove that Ning Chen's design plan is very rigorous, at least in theory.
At this time, Tian Shihao seemed to have discovered some problems, and said to Ning Chen:
"Ning Chen, theoretically speaking, I also think your design is very exciting, and it is probably caused by This will create a new generation of steel materials needed by the aviation and aerospace industries. However, I am not sure that with our current technological level, we can perfectly manufacture the material you designed."
Tian. Shihao immediately found out the most critical point, which was also an issue that Ning Chen was worried about before. "Yes, Professor Tian, this is also a question that puzzles me. I don't understand the current level of steel material processing technology, and I don't know whether this material can be processed, so I came to the Chinese Academy of Sciences specifically. Seek answers from experts. ”
After all, designing materials and processing materials are two completely different fields. With Ning Chen's current ability, he cannot directly process this kind of steel material.
“Well, it doesn’t matter. Scientific research work is definitely not that easy. In this case, we still have to cross the river by feeling the stones and constantly summarize and analyze during the experiment to determine a more suitable process. Method. ”
Ning Chen also feels that this is the right method. Maybe during the process of participating in the experiment, Ning Chen can also think of some processing methods suitable for this kind of material.
The Chinese Academy of Sciences attached great importance to Ning Chen’s steel material design plan, and immediately set up a project team the next day to conduct research on the processing of this steel material.
Because this project has a high level of confidentiality, every member participating in the project, including Ning Chen, has signed a confidentiality agreement and cannot disclose any content during the research process to the outside world.
After the project started, Ning Chen followed the project team to conduct experiments every day.
Since Ning Chen is the designer of this material, during the experiment, everyone will confirm the details of various materials with Ning Chen from time to time.
During the actual operation, it was mainly other experts from the project team who carried out the work. Ning Chen acted more as an intern, carefully observing everyone's operations and learning about steel material processing. Various processes, and look for opportunities to conduct some experiments on your own.
This made Ning Chen come to the Chinese Academy of Sciences for a project internship as he said before.
However, after a period of internship, Ning Chen has become very familiar with various technologies of steel material processing, and is able to complete some operations on his own.
However, because this material is a brand new steel material, we have not determined the final process plan and are still in the exploratory stage of experimentation.
On this day, Cheng Zhong and Tian Shihao brought everyone together to discuss some of the various problems encountered in recent experiments and to study together solutions to these problems.
“The first problem we need to solve is to avoid hydrogen embrittlement during the steel smelting process.” Cheng Zhong said.
The so-called "hydrogen embrittlement" phenomenon refers to the phenomenon that hydrogen dissolved in metal polymerizes into hydrogen molecules, causing stress concentration. When the strength limit of the metal is exceeded, small cracks are formed inside the metal. .
This phenomenon is very common in the process of material smelting, and once hydrogen embrittlement occurs, no method can reverse these phenomena.
Of course, this does not mean that the hydrogen embrittlement phenomenon cannot be completely solved. As long as the hydrogen embrittlement phenomenon can be prevented in advance and the occurrence of hydrogen embrittlement is avoided, the impact of hydrogen embrittlement can be greatly reduced.
After Cheng Zhong raised this issue, everyone discussed it together and proposed several possible solutions.
However, because this new type of steel material is relatively special, Cheng Zhong and Tian Shihao do not have high expectations for this solution. They feel that these solutions may not be able to solve the hydrogen embrittlement problem of this material well. .
(End of this chapter)