Ji Mingchu said that he had retired, which is a fact. But to say that he is just an ordinary person is a big joke. As one of the few remaining founding fathers, Ji had a very high status in the military and the central government at the beginning of the Ming Dynasty, and was able to participate in various important decisions. Since he has withdrawn from the front line, there are few opportunities for his name and photo to appear in the newspapers, which is why Qin Hai can't recognize him.

Qin Hai remembers that Ji died a few years before he crossed over, when the photos published in the media were much older than they are now. Now at the beginning of the Ji Ming Dynasty, although the hair has turned more than half white, and there are already a few age spots on the face, the tiger is old and majestic, whether standing or sitting, it can give people a great sense of psychological oppression.

"Ji Lao, I'm so sorry, I didn't recognize you." Qin Hai hurriedly apologized, even if he hadn't seen Ji Mingchu before, at least some epic dramas still had the image of Ji Mingchu, the special actors were well chosen, and their eyebrows and eyes were not too far from the real person in front of him, so Qin Hai should actually be able to guess his identity.

"It's not a mistake not to know me, there's nothing to be embarrassed about." Ji Mingchu waved his hand and said, "You know who I am now, the question I asked you just now, you can think about it again, can you do it." ”

"Yes!" Qin Hai didn't even hit a stump at this time, and directly gave a resounding answer.

"Haha, so happy?" Ji Mingchu smiled. Only this one word "can" made Ji Mingchu have a good impression of Qin Hai, as an old general who came out of the bloody storm, he likes young people with responsibilities very much. Qin Hai's expression was right for his temper.

"Elder Ji, the request you put forward must be related to the national defense plan. As long as you can bring it up, we have no reason to refuse. Qin Hai said awe-inspiringly.

Qin Hai at this time. It's also difficult to ride a tiger. Ji Mingchu made requests to him in front of so many people, especially if there was a chief on the scene, even if anyone borrowed a few guts from Qin Hai, he didn't dare to directly refuse Ji Mingchu. At this time, he could only agree to any request that Ji Mingchu might make, if any of them were beyond his ability. He also had to wait for a later time to slowly dodge.

Of course, from another point of view, Qin Hai also believes that Ji Mingchu is not the kind of person who has no purpose, and the requirements he can put forward should be within a reasonable range, and they must also be highly related to national defense construction. Qin Hai originally cared about national defense science and technology, how could he refuse such a request?

Ji Mingchu nodded, and then said, "Xiao Qin, I listened to what the senior said. Your attainments in materials are very good, and you are familiar with the laws of the materials industry, so I can't ask others for this matter, but only for you. ”

"Ji Lao, please speak." Qin Hai was not modest this time, and calmly accepted Ji Mingchu's praise.

Ji Mingchu said: "Do you know No. 98 steel? ”

"No. 98 steel?" Qin Hai's eyes lit up, it turned out that what Ji Mingchu had in mind was such a thing.

Qin Hai in the previous life, as an interdisciplinary materials expert, was involved in many important military projects. It was at that time that he learned what No. 98 steel was, and he was deeply impressed by the development process of this steel. The so-called No. 98 steel. In fact, it is a number determined within the military, and it is coincidental that when Qin Hai and Wang Hongsheng discussed holding a material science and technology exhibition, Qin Hai also gave an example of this kind of steel, which is the special deck steel used on aircraft carriers.

The steel used in warships is different from that of ordinary civilian ships. The steel of the ship plate of civil ships only needs to be considered strong, durable, and especially resistant to seawater corrosion. Warship steel needs to be added with special requirements such as impact resistance and high temperature resistance. To put it simply, it is to ensure a certain survivability in a war environment, and in this sense, the requirements for warship plate steel are much higher than those for civilian ships.

Among all the military ship plate steel, the steel for the manufacture of aircraft carrier decks and nuclear submarine pressure-resistant shells is the most stringent. In peacetime. The probability of a missile strike on a warship is very small, and generally speaking, it is enough to withstand one or two strikes. However, aircraft carrier deck steel and nuclear submarine pressure shell steel are different, they need to work in harsh environments for a long time, and there is almost no difference between peacetime and wartime.

Take aircraft carrier deck steel, for example. The deck is used for the take-off and landing of carrier-based aircraft, and when the aircraft takes off, the flames from the engine will cause high temperature and scorching heat on the deck; When the plane lands, the landing gear has a huge impact on the deck. In other words, the deck of an aircraft carrier is subjected to repeated attacks almost every day, and in this case it must also be guaranteed that it does not deform, otherwise it will have a severe impact on the take-off and landing of aircraft.

A simple performance index can illustrate the high requirements of deck steel. The yield strength of ordinary civil ship plate steel is about 250 megapascals. The yield strength of the steel plate of ordinary military vessels is required to reach 350 megapascals. And the aircraft carrier deck steel used in the United States, including HY130 and HSLA-115, has a yield strength of more than 800 megapascals.

Here's a quick introduction: 1 megapascal refers to a pressure of 1 million newtons per square meter, and people usually say that 1 atmosphere is only equivalent to 0.1 megapascals. 800 MPa means being able to withstand ...... Well, it's a lot, a lot of pressure anyway.

At that time, the maximum yield strength of ship plate steel that China could produce could only reach 440 megapascals, compared with the United States, the Soviet Union, Japan, and France, which had a yield strength of more than 1,000 megapascals.

The development of No. 98 steel is to solve the bottleneck of ultra-high-strength ship plate steel and provide a material basis for the construction of China's aircraft carriers and nuclear submarines. However, due to the lack of technology accumulation and the limited investment of the state, the development of No. 98 steel is currently in a difficult situation.

Ji was a hawkish representative in the military at the beginning of the Ming Dynasty, and he had a deep affection for aircraft carriers and submarines. This time, he accompanied the chief to visit the materials exhibition, and listened to the development ideas of the Planning Commission on the development of materials science and technology. In his heart, there is a faint expectation, that is, maybe this young man can make the development of No. 98 steel bright.

In this life, because of his relationship with Chen Heqian, Qin Hai had heard the name No. 98 steel, so when Ji mentioned No. 98 steel in the early Ming Dynasty, Qin Hai didn't need to pretend not to know about it. He nodded lightly and said, "Elder Ji, I heard Professor Chen mention No. 98 steel. ”

"If I leave this to you, can you get it out?" Ji Mingchu is worthy of being a soldier, and he doesn't talk around the bush at all.

Qin Hai turned his head to look at the people in the VIP room, and smiled without saying a word. He knew that in addition to himself, a young exhibition organizer, the rest of the people who could participate in this forum were at least officials at or above the vice-ministerial level, and there was no need to keep them secret at the level of No. 98 steel. Even so, Qin Hai didn't want to discuss this topic in front of everyone, because he still had some conditions to talk to the old general, and there would be no explanation if there were too many people.

"Haha, I see." At the beginning of the Ming Dynasty, who was there, where could he not guess the little abacus in Qin Hai's stomach. In his opinion, Qin Hai's willingness to talk to him secretly is a good thing, which shows that Qin Hai is both interested in this matter and has a certain degree of certainty, which is much stronger than slapping his chest in front of everyone.

Ji Ming Chu hit this fork in this way, the chief then made a series of instructions for the material exhibition, Wang Hongsheng and others naturally quickly took out a small notebook and wrote them down one by one, so as to implement them one by one in the future, and organize the personnel of the unit to "study in depth". The leader's speech is not necessarily the truth, but these speeches contain the leader's opinion or expectation about something. As a subordinate, it is very important to understand the intention of the leader, and if you do things contrary to the leader's ideas, it is difficult to be praised for doing a good job.

At the end of the discussion, the chief got up and left, but Ji Mingchu stayed. Wang Hongsheng knew that he and Qin Hai had something to say, so he arranged for someone to take the two of them to a smaller room. After the staff poured tea for the two of them, they left obediently, and carefully closed the door after going out.

"Okay, now there's no one else, can you tell me what you think?" Ji Mingchu took out a cigarette from his pocket and lit it, took a beautiful puff, and then said to Qin Hai.

Qin Hai sat upright on the sofa and made a respectful gesture. He didn't dare to have any complaints about Ji Mingchu's behavior of smoking alone, after all, his status was far from Ji Mingchu's, and so far he had not done anything enough for Ji Mingchu to smoke to him. If Yang Xinyu, Wang Hongsheng and others were replaced in front of them, even if they knew that Qin Hai didn't smoke, they would symbolically give in.

"Ji Lao, I want to know how the current research progress of No. 98 steel is." Qin Hai said.

Ji Mingchu has a lot of appreciation for Qin Hai's expression, a young man in his early 20s, who has no job or power, can be calm and calm in front of him, and his logic of speech is not confused, which fully shows that this young man has strong self-confidence and good psychological qualities. Such a person is like a person who can take on heavy responsibilities.

"Ming people don't talk darkly, and the progress is very slow now. The researchers were stuck at the level of 95 steel and had difficulty moving forward. It has been six or seven years since the successful development of No. 95 steel, and I am worried that I will not see the day when No. 98 steel is born. Ji Mingchu said.

"Ji Lao doesn't need to say this, your body is stronger than mine, I think you can live for another twenty or thirty years if you don't say anything. You can rest assured that in your lifetime, you will be able to see the birth of No. 98 steel. Qin Hai said an auspicious word with a smile. The old man is 80 years old this year, and living for another twenty or thirty years can be regarded as a long life, so this kind of prophecy should be regarded as a blessing rather than a curse. (To be continued......)

PS: Speaking of which, the old general is only fictional because of the needs of the plot, without any prototype, and does not try to refer to anyone, so don't guess. In particular, this book is only an industrial text.