"Superalloy material?"

"Yes, superalloy materials, do you know my country's latest fourth-generation fighter?" Qiao Yunfeng looked at Zhang Yang, put his hands behind his back, paced back and forth on the side of the tea table, and said with a helpless look.

"Yes, there are two of them, Black Ribbon and Black Bird." As a college student, and a boy, he knew about these things.

"Yes, these are these two models, it can be said that the design of these two fighters is not weaker than that of advanced Western countries, but there is still a weakness, that is, the engine..."Qiao Yunfeng, stopped at the table, and sat down again, "Frankly speaking, our engines, whether it is the thrust-to-weight ratio or the stability of the quality, are not comparable to the advanced countries of the West at present, do you know where the key to the problem is?" In fact, it is the superalloy material used in engine blades and other components. ”

"At present, the engines used by the world's mainstream fighters are turbine engines, which rely on the pressure expansion process to achieve thermal power conversion to achieve the expected thrust effect, and the size of this thrust depends on the pressure ratio, and the other is how to increase the temperature before the turbine. Theoretically, we can design ultra-high pressure ratios and infinitely increase the pre-turbine temperature, but a key issue here is the stability of the blade's quality and its tolerance. ”

At present, in the world, most of the Western countries, the superalloys used are nickel-based superalloy materials, and Western countries, especially the United States, the famous F119 engine uses the fourth-generation single crystal nickel-based superalloy material EPM-102. At present, China has entered the practical use of the second generation of nickel-based superalloys, of course, we are not without the ability to design alloy materials comparable to them. ”

"We can even produce high-niobium titanium aluminum alloy blades, but there is still a gap between us and Western countries in terms of technology and stability."

"Western countries have developed the thrust-to-weight ratio of turbofan engines to the extreme, and we can only catch up. They have a thrust-to-weight ratio of 11, and we're only sitting between 7.5 and 9 now, so that's the real difference. ”

"And your future father-in-law. Now I happen to be in charge of the research of superalloy materials, so since you have so many future technologies in your head. How about helping me get a set of technical information about the superalloy materials that can be put into production safely? Even if it's not for me, it's for the sake of the country. ”

Qiao Yunfeng looked at Zhang Yang's eyes, revealing a hint of urgency.

Zhang Yang, it's not that he doesn't want to help, but he has eleven points now, which is still far from fifty points, unless he loses points again, he can only ask the system and try his luck.

But actually. Just when Qiao Yunfeng was talking, he asked the system assistant that a set of turbofan blades that can make the thrust-to-weight ratio of the turbofan engine reach 13 or even all the technical data of the fifth-generation nickel-based superalloy material used in it will cost four; Ten system credits. A set of high-niobium titanium aluminum alloy material design and process technology materials cost 50 points, and a complete set of design data that can be used in the anti-gravity system of the vacuum energy engine even costs 320 points, with his current integration situation, it is impossible to do.

But of course, as long as you work hard, you can take out these things in a few days.

He gritted his teeth. Deliberately biting a few words of superalloy materials, he repeated: "Superalloy materials? I haven't found any information about this in my head yet, but if I were given another week, I would definitely give you a fifth-generation nickel-base superalloy production process."

"A week?"

"Well, no matter how fast it is, I'll have to give it at least four days." Zhang Yang gritted his teeth and said, forty points, now eleven points, there are still twenty-nine points, four days, seven to eight points a day, it's not that he can't stand it, but Lulu and Gao Qi are afraid that they can't stand it, and he is also worried that if this set of technical data is like the damn "first-level security defense system", what future technology is used in it, and it will cost points, it will be a bottomless pit.

I'm afraid that if the engine doesn't come out, I will die first.

"No, no, don't be so fast, I thought it would take a year and a half, I didn't expect you to be able to make a set in a week, isn't it too hasty, a month, if you can help me get a set in a month, the fifth generation nickel-based superalloy... No, the fourth-generation can also be, as long as we can produce high-temperature alloy materials with stable quality, you are the hero of the country, and I will definitely help you ask for credit. ”

"Uncle, there's no need to ask for credit or anything, but I have one condition."

"What conditions, you say."

"That is, you can't let people know that I provided these things, including these words that I told you at night." Zhang Yang said that Qiao Yunfeng is his future quasi-father-in-law, and he is also a general, so even if he reveals some things to him, there should be no problem, but if he lets others know, he will be in big trouble in the future, and his head will be cut off and studied by others.

"It's that simple?" Qiao Yunfeng thought that Zhang Yang would open his mouth to ask Qiao Xier to marry him, but he didn't expect to make such a simple request, Zhang Yang's secret, even if Zhang Yang didn't mention it, he wouldn't tell others, this is his precious son-in-law, and if he said it, he wouldn't let others rob it.

He smiled and nodded again and again: "What you said in the evening, I will never tell anyone, but if you provide the process technology of the fifth-generation nickel-based superalloy material, but you don't get any rewards, it will be too much of a loss, anyway, it is also my Qiao Yunfeng's son-in-law, I can't watch my son-in-law suffer..."

At this time, he has directly turned his prospective son-in-law into a son-in-law.

Zhang Yang was secretly happy in his heart, but he said quietly on his face: "Uncle, as long as you don't object to me being with Joyce, I am already very grateful, as for those rewards or something, they are nothing to me at all." ”

"Well, let's talk about it then." Qiao Yunfeng was so excited at the moment that he didn't know what to say. As long as we get a stable set of superalloy production technology, we can not only make the domestic high-thrust specific gravity engine go into production, but also make the most advanced fighters of Huaxia comparable to the most advanced fighters of western developed countries in the future, or even surpass them.

Downstairs, the hostesses of Waju were sitting nervously around Qiao Yunfeng's visit. Not only did it make Jo Xi'er extremely nervous, but even Xu Danlu and Gao Qi were worried for a while.

The two of them have long regarded Joshier as their own sisters, and they are also very aware of Joshier's importance to Zhang Yang.

And what kind of family is the Qiao family. They naturally know very well, of course, it is impossible to accept such a suave and suave civilian child who also has two girlfriends.

Qiao Yunfeng came over, and naturally he was not good. Now that the two of them have been chattering on the fifth floor for so long, Joshier and the others, who had been waiting downstairs for several hours, just rushed directly to the fifth floor to take a look.

"Qiaoqiao, you said that your father is a general, right, I heard that he also stayed in the special forces, so isn't he very good at fighting?" Gao Qi held up a pair of big and stared at Josh with a worried face, "You say, will he cripple Yangzi?" ”

"No, my dad isn't that kind of person..."Joshel said with trepidation in her heart, but she didn't know the bottom of her heart. She vaguely remembers that when she was a child, when she was in school, she was bullied by a male classmate, but her father directly led a group of people to the door...

When I was in high school. I heard that a boy chased after him very closely, and as soon as my father heard about it, he personally asked for leave, rushed back from the army and blocked the boy, and I don't know what my father did, anyway, the boy transferred directly the next day.

And this time... All right. Although the father seems to be easy to talk to, it is to himself, but if it is an outsider, it is difficult to say, especially Yangzi, if he thinks that he is with him, it is possible to break his leg.

However, just as they were worried, and even Gao Qi went to look for a stretcher, Qiao Yunfeng and Zhang Yang walked downstairs affectionately like a pair of brothers.

The three of Josh were petrified on the spot, especially Josh'er, she had already prepared a way for her father and Zhang Yang to deal with it if the talk broke down, but she didn't expect these two people to come down together so harmoniously.

"Dad, you didn't publicize it, did you?" Josh's eyes fell on Zhang Yang, and she kept looking around, for fear that this guy was missing a part.

"What words... What can I do with him? Qiao Yunfeng was so angry with his baby daughter's words that he almost vomited blood, your father is such an old bone, this flamboyant fight is very awesome, you don't know, it's good now, I actually asked him if he was okay, instead of asking if your father had a problem.

Sure enough, it was the woman who didn't stay, and her arms turned outward.

"It's okay, it's okay." Joshier confirmed, and sure enough, Zhang Yang didn't miss a single part on her body, and she quietly glanced at her, and she immediately put down a stone in her heart.

"Hmph, it seems that Qiaoqiao, you don't want me to stay here, it's just that, I won't live here tonight, so as not to hinder you." Qiao Yunfeng pretended to be angry and glanced at Qiao Xi'er.

"Hey, Dad, since it's so late, then you can stay if you want to stay." Josh'er heard her father's tone, and was completely relieved, it seems that this level should have passed, and at this moment her mind has been all on Zhang Yang, this stinky guy, how to settle her father, she will have to torture it later.

Qiao Yunfeng glanced at Zhang Yang speechlessly, this daughter can't stay anymore, if you want to stay, it's obviously an eviction order, but he didn't plan to stay, it is said that all of them are beautiful girls, what is the matter with a big man living here, besides, he has to go back immediately to sum up the total, the fifth-generation single crystal nickel-based superalloy material process, this is a qualitative leap, there must be a lot of basic work to be done.

"Let's go..."Qiao Yunfeng looked at Zhang Yang and said with a smile, "Zhang Yang, remember the agreement between us." ”

"Don't worry, uncle!"

Qiao Xi'er was really heartless, and as soon as she sent her father away, she immediately caught Zhang Yang and tortured him: "You... What did you say to my dad? ”

"Want to know?" Zhang Yang grinned and looked at her bulging peaks.

"Nonsense!" Qiao Xi'er looked at Xu Danlu and Gao Qi on the side, thought about it, and gave up her rough thoughts, "Hurry up and sue me, otherwise you will have good fruit to eat." ”

"No, unless you promise me one condition." It's also forty points in exchange, Zhang Yang's heartache for a while, then you have to fight more than a dozen games...

"On what terms?" Joshiel looked at his lustful eyes and knew that this guy must not be well, but she really wanted to know the answer. (To be continued) RQ