From the No. 1 Scholar in the College Entrance Examination to the Overlord of Science and Technology

Chapter 801

“The smart computer, quickly take out the titanium alloy that was just in the low temperature environment of the virtual space, and then go to our sample room to bring the sample fossil containing nitrogen that we took from that extinct planet.”

“Good master, I will go right now.”

After a while, these two things were transmitted to Jiang Cheng through the airborne transmitter on the spacecraft.

Jiang Cheng took out the instrument detector, some instruments for experimentation, and the special element extraction instrument he made for himself, and started his own work.

Now Jiang Cheng has extracted 517 some nitrogen elements from the sample of this stone and prepared to fuse it with the titanium alloy to see if they can survive in space, whether there are any good changes, or whether they can be used as The material at the end of the self-transmitter in space.

Soon Jiang Cheng picked up a lot of nitrogen from this sample, and what he had to do next was to study the elements of titanium alloy.

Why did you decide to use such metals as titanium alloys in the end? It is because Jiang Cheng has done a lot of investigations, and the safety of titanium alloys is also very high, and the development process is also very long.

Titanium alloy is a very indispensable metal developed in the 1950s. Titanium alloy has high strength, good corrosion resistance and high temperature resistance.

According to data, in the 1950s and 1960s, titanium alloys developed high-temperature titanium alloys for aero-engines and structural titanium alloys for airframes.

A batch of corrosion-resistant titanium alloys were developed around the 1970s, and since the 1980s, corrosion-resistant titanium alloys and high-strength titanium alloys have been further developed.

Moreover, the most important thing is that titanium alloy is mainly used to make aircraft engine compressor parts, and then the structural parts of rockets, missiles and high-speed aircraft.

“Smart computer, please investigate how titanium alloy reacts below the phase transition temperature.”

“Good master, titanium alloy is an alloy based on titanium added with other elements. Titanium has two different and the same crystals: below the temperature of 882, the hexagonal close-packed Alpha Titanium, 882 Body-centered cubic beta titanium above temperature.”

“So, about how many reactions does titanium alloy produce at the phase transition temperature?”

“The first, the element that stabilizes the Alpha phase and raises the phase transition temperature is the Alpha stabilized element, which contains a total of aluminum, carbon, oxygen, and nitrogen. Among them, aluminum is the main alloying element of titanium alloys. The room temperature and high temperature strength of the product, reducing the specific gravity, and increasing the elastic modulus have obvious effects.”

“The second, the element that stabilizes the beta phase and reduces the phase transition temperature is the beta stable element, which can be divided into two types: isomorphic and eutectoid. The former includes molybdenum, niobium, vanadium, etc.; the latter includes chromium and manganese. , Copper, iron, silicon, etc.”

“The third type. Elements that have little effect on the phase transition temperature are heavy elements, such as zirconium and tin.”

“There are probably these three, master”

“However, according to the data, oxygen, nitrogen, carbon and hydrogen are the main impurities in titanium alloys. Oxygen and nitrogen have a relatively large solubility in the Alpha phase, and the plasticity of titanium alloys is reduced, but it also has an improved effect on him. Usually. It is stipulated that the content of oxygen and nitrogen in titanium should be below 0.15% to 0.14% and 0.04% to 0.5%.”.