"The material of the armor must be very hard so that it can block external damage. In addition to this, when you fly at a high altitude, you also need to be able to resist low temperatures. Otherwise, let alone whether the users inside will be frozen. Once the armor freezes and loses its power, it can only fall from high altitude into meat pie."

In the original work, Stark's Mark's second-generation armor, which is the frozen silver-gray armor, was challenging the flight altitude of SR-71 and the Blackbird fighter. The armor freezes at a high altitude, and the power device on the soles of the feet fails, and Stark is almost killed.

Zhang Yang continued to guide Stark. Stark thought for a while, dragged a large wooden box from the other side and kept picking it up.

"Pure steel is definitely not good. It requires mixing other metals. There are many lightweight ones and many hard ones. However, the combination of the two is also resistant to low temperatures. This..."

Watching Stark flipping through the big box, Zhang Yang glanced at him. Under the table next to him, a metal block with blue and red paint was padded under the table by Tony.

He walked over and lifted the table up, not noticing that Tony was a little surprised to see Zhang Yang's actions.

Zhang Yang pulled out the metal from under the legs of the table, but found that it was a semi-finished product of a shield with red and blue paint on it. Zhang Yang's hand holding the shield trembled slightly.

"Is it Captain America's shield?"

The shield looks clearly the shield used by Captain America. It is made of one of the hardest substances on the earth, vibrating gold. It cannot even break Thor's hammer and can reflect lasers.

"Um?"

Stark walked over and saw the semi-finished product, explaining.

"What captain? This shield is a semi-finished product made by my dad from titanium alloy, and it is just a sample. It seems that the only finished product was given to him."

A wave of disappointment surged in Zhang Yang's heart.

"It turned out to be a titanium alloy. How good would it be if it were vibrating gold or Eidman alloy?"

Among the superheroes under Marvel Comics, Captain America's shield is made of vibrator, while Wolverine's claws are made of Eidman alloy. These two metals have characteristics that are not found in the periodic table of elements on the earth and are harder than any material.

Stark's father, Howard Stark and Captain America, were characters from the same period. Howard synthesized vibrator in an experiment and created a shield, which was later given to Captain America by then President Franklin Roosevelt.

Zhang Yang has always been a little strange. Howard did not seem to tell Stark about this metal, perhaps because the government requires confidentiality, or because there are no samples. In short, Zhang Yang once was very worried about this issue. Titanium alloys are much worse than vibrator and Eidman alloys, but they are already very expensive.

"What do you think of using titanium alloy as armor?"

Stark looked at Zhang Yang: "Titanium alloy is very hard and has a relatively light weight, but it seems to be unable to resist low temperatures."

Zhang Yang thought for a while.

"Then keep looking. In addition to resisting low temperatures, it also needs to resist high temperatures. When flying at high speed, the surface of the armor and the air will quickly rub against each other, which will release extremely high temperatures. People inside are likely to be roasted. In addition to these, shock absorption and oxygen capacity are very important."

"I remember that the Sith company's Angel Tactical Satellite uses a more advanced gold-titanium alloy. The metal has a high melting point and can withstand low temperatures well."

“Good idea.”

"Jarvis, please contact Sith Company and order surface metal. To use the gold-titanium alloy of Angel Tactical Satellite, I need to ensure the power-to-weight ratio, which can also enhance the strength of the armor."

"What should the improved armor be called?"

"Mark II, this drawing is a drawing of Mark I and a prototype."

Zhang Yang and Stark were discussing, and a blonde woman came over with two cups of coffee. She should be Stark's other half, Little Pepper Pep.

“thanks.”

Zhang Yang picked up a cup of coffee and took a sip. He felt it was very fragrant, with a bitter taste, without the batter of roasted coffee beans.

“Great coffee.”

Pep is the second person with permission to enter this basement except Stark, and the third person who can enter is probably Colonel Roddy.

"Tony, this is your schedule for tomorrow, I think you need to take a look."

Pep took out a table full of Stark's itinerary. Pep was Stark's secretary, responsible for his work and life arrangements.

"You made an appointment with Colonel Roddy, and you will arrive at Santa Monica Airport tomorrow morning."

"Pep, you know you don't like watching these."

Stark doesn't like his life being full of orders, often complaining about these arrangements and making excuses to procrastinate.

After Pep left, Zhang Yang remembered that Stark would go to Afghanistan's Baghlan Air Force Base tomorrow, where he was attacked and created Iron Man. Zhang Yang didn't know how to stop Stark, so he thought about it.

"Stuck, give you something."

A black scarab appeared in Zhang Yang's hand. Seeing the scarab appear out of thin air, Stark was stunned for a moment, and then looked at Zhang Yang deeply.

"Zhang Yang, you surprised me."

Stark fiddled with the scarab and said in confusion: "What is this?"

"The scarab, a carnivorous beetle, can survive for several years."

Hearing Zhang Yang's explanation, Stark silently retracted his hand and glared at Zhang Yang.

"You actually gave me such a carnivorous insect?"

"Don't worry, this insect was summoned by me and will not bite people casually. I gave it to you because it can connect my mental power. You need to find me and speak directly to it. I don't have a phone number or any contact information, only this one."

Zhang Yang asked Xiaoya that if he had been providing mental power to the scarab, the scarab would not have disappeared in 4 hours. In order to know his position after Stark was attacked, Zhang Yang decided to give Stark a scarab to use as a coordinate.

Going to Afghanistan is an invitation from the US military. Zhang Yang cannot stop Stark, but instead makes Stark suspicious, so he might as well let it go and find other ways to save Stark.

"If you suspect that I am monitoring you, you can use a box like lead to hold it, and your mental power cannot penetrate the lead block. When you contact me, just open the lead box, but you need to carry it with you."

Seeing Zhang Yang's appearance, Stark finally hesitated for a while, then took it, found a small lead box, and put it in.

"Okay, I get it."

Zhang Yang tried to sense the scarab with his mental power, but found that it was blocked by a lead box. The substance lead can indeed block the investigation of mental power.

The discussion about the second-generation armor continued until 12 o'clock. Stark had to go back to rest obediently under Pep's mandatory request. Zhang Yang also consciously left the basement and did not stay inside. Because Zhang Yang had only a pitiful $70 left, Zhang Yang stayed at Stark's house and was about to talk about it tonight.

Stark's home is very spacious, and the whole family is automatic. It is controlled by Jarvis' intelligent system. Zhang Yang took a shower, lay on the bed, and slept comfortably. This sleep was directly at 9 o'clock the next day. When Zhang Yang woke up, Jarvis automatically controlled the curtains to open, revealing the sea view outside, which was very beautiful.

"A luxury enjoyment."

Zhang Yang washed up and stood up, but did not see Pep and others putting breakfast on the table. Jarvis's voice sounded in the room.

"Mr. Zhang Yang, good morning, Mr. Stark and Pep went to Santa Monica Airport and were expected to come back tomorrow, and you can leave on your own during this period."

Zhang Yang suddenly had the idea of ​​teasing Jarvis.

"Can't I leave? I'm right in the house. Can you still drive me out?"

"Mr. Zhang Yang, of course I have no reason to drive you away. This is your freedom."

Zhang Yang ate breakfast, toast, milk, and eggs, all of which were taken out by Jarvis, and they were delivered directly from the breakfast shop.

At this time, the doorbell rang a few times, and Zhang Yang walked to open the door. A man in a black suit saw Zhang Yang and showed him a certificate.

"I'm an agent of SHIELD, Phil Colson, this is my document."

S.E.L.D.?

Zhang Yang was a little surprised. What did this have to do with him?
Chapter completed!