Xueba starts with change

Chapter 314 Research on Surface Modification of Intense Pulsed Ion Beam Materials

Came to the experimental area with Dean Yang.

The more Chen Zhou saw the slightly smug expression on Dean Yang's face, the more he felt that he had been tricked.

But for routines, there is a way only when there are routines.

It was also an opportunity given by Chen Zhou himself.

In the end, he didn't actually think about the topic of the graduation thesis for the Department of Physics. It's good to have Dean Yang "suggestions".

Can you still use the national laboratory if you don't guarantee it?

This is why Chen Zhou would rather be tricked.

When Dean Yang came to the experimental area, he began to check the preparation of the experiment, and Chen Zhou followed Yang Yiyi to familiarize himself with the process of the applied experiment as usual.

Although Chen Zhou has gone through all the materials, the observation of the experimental site is still an indispensable part.

"Yiyi, let's go." Chen Zhou said with a smile.

"Yes." Yang Yiyi nodded slightly, leading the way.

The overall experimental setup is not much different, but the focus of attention in the experiment has changed.

Previously, the focus was on the optimization of diodes. Now, although it is the research on the surface modification of materials, it is actually more concerned with the high-power pulsed ion beam itself.

High-power pulsed ion beams, that is, intense pulsed ion beams, are used in the field of materials and are developing into a new material surface modification technology.

In addition to the element doping effect of ion implantation, it can also use the thermodynamic effect induced by intense pulse energy deposition, which is expected to break through the limitation of ion range on the thickness of the modified layer.

And efficiently use the ion dose and energy to become a new generation of low-cost, high-efficiency, high-productivity, practical ion beam material modification and synthesis process.

At present, in the world, some laboratories with strong pulsed ion beam devices, such as Japan, the United States, and Russia, are mostly laboratories that were originally engaged in light nuclear fusion research.

Utilize the characteristics of ultra-fast heating, melting, and solidification of metals treated with intense pulsed ion beams, and develop related technologies for treating metal surfaces with intense pulsed ion beams, preparing thin films and synthesizing nano-powder materials.

For example, the United States has established the QM Surface Treatment Center, which specializes in the use of intense pulsed ion beams for ultra-fast molten metal surface strengthening processes.

In China, in recent years, with the support of the National Natural Science Foundation of China and the special fund for doctoral programs in universities, the surface modification technology of intense pulsed ion beam materials has been developed around it.

A relatively comprehensive basic research has been carried out on its main mechanism, the intense pulse energy effect, the thermodynamic process induced by ion irradiation, the surface melting pit phenomenon, and the large-area uniform ion beam technology.

This experiment is aimed at the surface modification of 30SiMn2MoVA steel, and its microstructure and corrosion resistance are studied.

Then through the experimental data, and finally fed back to the subject itself.

That is, research that feeds back into the intensely pulsed ion beam itself.

Because the current high-intensity ion beams used for material performance modification have certain limitations.

The most obvious performance is that the penetration depth is too shallow, the failure rate is high, and the ion beam energy distribution is uneven.

For example, the acceleration voltage of the 6cm large beam spot high-current ion beam developed by the Northwestern Lia Strong Current Research Institute in Russia is only 30kV, and the penetration depth of the surface treatment of ordinary steel is only a few microns.

Of course, this is Chen Zhou's guess based on the general direction of the current project.

The specific research progress is still under the control of Dean Yang.

After thinking about it, Chen Zhou looked at Yang Yiyi and asked, "Do you know what 30SiMn2MoVA steel is?"

Yang Yiyi smiled lightly: "Are you planning to test me?"

Chen Zhou was taken aback for a moment, and then said softly: "Then how dare I? I'm asking Teacher Xiao Yang for advice."

Hearing Chen Zhou's words, the corners of Yang Yiyi's mouth curled up, happy that she was getting better at talking.

But unlike Yang Yiyi's happy smile, not far from them, Ma Zihao was checking the experimental device.

Hearing the conversation between the two, Ma Zihao grinned unconsciously, can you stop throwing dog food?Don't you know that the scientific research dog here is also a single dog?
The movements of Ma Zihao's hands couldn't help speeding up a bit, fully demonstrating his sharp eyesight and quick hands as a qualified scientific research dog.

"30SiMn2MoVA steel is actually an alloy structural steel with excellent comprehensive mechanical properties such as high strength and high toughness. Whether it is in marine development, automobile industry, energy development, or petrochemical industry, it has a wide range of applications." Yang Yiyi Absolutely enough homework done.

Yang Yiyi has a characteristic. After she chose the path of physics, her goal was clear.

Moreover, she often has her own thinking and preparation when dealing with subject research.

Yang Yiyi glanced at Chen Zhou, and asked back: "Then do you know what is the biggest purpose of the research on the surface modification of 30SiMn2MoVA steel?"

Chen Zhou thought for a while, and then stated his speculation just now.

But after hearing this, Yang Yiyi shook her head slightly: "What you said is only one aspect, and it is the general direction of the project, but in fact, there is another reason."

Chen Zhou showed a puzzled look, and after thinking about it carefully, he thought of a possibility, and said, "You mean the specific application?"

Yang Yiyi nodded, and said with a soft smile: "Yes, this is applied research, you are thinking too much."

Looking at the slightly embarrassed Chen Zhou, Yang Yiyi continued: "Actually, 30SiMn2MoVA steel has been used as a military component steel for a long time. Its working environment is changeable, and the corrosion resistance of the material surface is greatly affected. Influence."

"I understand." When Yang Yiyi said this, Chen Zhou suddenly understood.

He was thinking, how could the subject of the national laboratory be purely technical research?

"Have you figured it out?" Yang Yiyi showed an expression that was about to praise me.

"Yeah, teacher Xiao Yang is really good! Xiao Chen has been taught!" Chen Zhou said with a smile.

"Of course." Yang Yiyi said proudly.

Compared to the past, she was always the one who praised Chen Zhou, but this time she was finally praised by Chen Zhou, so she was naturally very happy.

However, Yang Yiyi didn't intend to hide from Chen Zhou, she looked at Chen Zhou seriously and said, "Actually, I have a secret to tell you."

Seeing her serious appearance, Chen Zhou asked curiously, "What's the secret?"

Yang Yiyi's expression was fixed, and she said seriously: "Actually, 30SiMn2MoVA steel is indeed a steel for military parts."

"Huh?" Chen Zhou didn't quite understand.

"But the purpose of our research, I was just guessing like you, hahaha." The serious expression on Yang Yiyi's face suddenly turned into a playful smile.

Chen Zhou shook his head with a smile, and immediately reached out to grab Yang Yiyi, ready to punish him.

Unexpectedly, Yang Yiyi was already prepared, so she avoided it with a smile.

At this time, there was a light cough not far from the two of them.

Chen Zhou and Yang Yiyi looked together.

Peng Jia said embarrassingly: "Well, I'm sorry to bother you, go first... go to the console, and prepare for the experiment."

After finishing speaking, Peng Jia turned around instantly and left quickly.

The atmosphere in this laboratory has really changed...

　Thanks to the book friend Liu Qigongzi V for the 200 starting point coin reward, and thanks to the book friend Buzhou Shanxia Xiaodao for the 100 starting point coin reward.

　　
　
(End of this chapter)