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Chapter 314 Surface Modification of Materials with Intense Pulsed Ion Beam

Come to the experimental area with Dean Yang.

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

But there is a way to do it if there is a condom.

It was also the opportunity given by Chen Zhou himself.

After all, he actually did not think about the topic of the graduation thesis of the Department of Physics. It was very good to have Dean Yang "proposal".

Can't you still use a national laboratory?

This is Chen Zhou's little thought that he would rather be tricked.

When President Yang came to the experimental area, he began to check the preparations for the experiment, and Chen Zhou followed Yang Yiyi to become familiar with the process of applying the experiment as usual.

Although Chen Zhou has already passed all the information, it is still an indispensable part of the observation on the experimental site.

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

"Yeah." Yang Yiyi nodded slightly and led the way in front.

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

I have previously paid attention to the optimization of diodes. Although it is now a study on material surface modification, I have actually paid more attention to the high-power pulsed ion beam itself.

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

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

And efficiently utilize ion dose and energy, becoming a new generation of low-cost, high-efficiency, high-productivity and practical ion beam material modification and synthesis technology.

At present, most of the laboratories in the international arena such as Japan, the United States, Russia, etc. that have strong pulse ion beam devices are laboratories that were originally engaged in light nuclear fusion research.

Using the characteristics of ultrafast heating, melting, and curing of metals with strong pulse ion beams, we develop related technologies for treating metal surfaces, preparing thin films and synthesizing nanopowder materials.

For example, the United States has established a qm surface treatment center, which specializes in the use of strong pulse ion beams to carry out ultrafast molten metal surface strengthening process.

In China, in recent years, with the support of the National Natural Science Foundation and the Special Fund for Doctoral Programs of Universities, the surface modification technology of strong pulse ion beam materials has been developed around it.

A relatively comprehensive basic research was carried out on its main mechanisms to strengthen pulse energy effects, thermodynamic processes induced by ion radiation, surface melting phenomenon, and large-area uniform ion beam technology.

This experiment was conducted on the surface modification of 30simn2mova steel and studied its microstructure and corrosion resistance.

Then, through the experimental data, it is finally fed back to the topic itself.

That is, the research on the strong pulse ion beam itself.

Because the strong ion beams currently used for material performance modification have certain limitations.

The most obvious manifestation 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-spot strong current ion beam developed by the Leslie Institute of Northwest Leslie, Russia has a maximum acceleration voltage of only 30kv, and the penetration depth of the surface treatment of ordinary steel is only a few microns.

Of course, this is a guess made by Chen Zhou based on the general direction of the current topic.

The specific research progress is still controlled by Dean Yang.

After thinking about it, Chen Zhou looked at Yang Yiyi and asked, "Do you know what 30simn2mova steel is?"

Yang Yiyi chuckled and said, "Are you planning to take the test for me?"

Chen Zhou was slightly stunned and then said softly: "Then how dare I? I'm asking Teacher Xiao Yang for advice."

Hearing Chen Zhou's words, Yang Yiyi's mouth curled up with a curve, and she was so happy that she could speak more and more.

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

Upon hearing the conversation between the two, Ma Zihao grinned unconsciously. Can you not show off your dog food? I wonder if the scientific research dogs here are also single dogs?

Ma Zihao's movements in his hands couldn't help but speed up a little, fully demonstrating his sensibility and speed as a qualified scientific research dog.

"30simn2mova steel is actually alloy structural steel, with excellent comprehensive mechanical properties such as high strength and high toughness. It has applications in marine development, automobile industry, energy development, petrochemicals and other fields." Yang Yiyi

The homework is done absolutely sufficiently.

Yang Yiyi has a characteristic: after she chose the path of physics, her goal was to be clear.

Moreover, she often has her own thinking and preparations when dealing with research on projects.

Yang Yiyi glanced at Chen Zhou and asked back, "Do you know what is the biggest purpose of research on material surface modification of 30simn2mova steel?"

Chen Zhou thought for a while and expressed his speculation just now.

But after hearing this, Yang Yiyi shook her head gently: "What you are talking about is only one aspect, and the general direction of the topic, but in fact, there is another reason."

Chen Zhou showed a puzzled look. After thinking about it carefully, he thought of a possibility and said, "Are you talking about the specific application?"

Yang Yiyi nodded and chuckled softly: "Yes, this is originally applied research, you are thinking too much."

After looking at Chen Zhou who was slightly embarrassed, Yang Yiyi continued: "In fact, 30simn2mova steel has been used as a kind of military component steel. Its working environment is varied and the corrosion resistance of the material surface is greatly affected.

Influence."

"I understand." Chen Zhou suddenly realized after Yang Yiyi said this.

He was wondering, how could the national laboratory's project be purely technical research?

"Did you figure it out?" Yang Yiyi showed an expression that she was about to praise me.

"Yeah, it turns out that Teacher Xiao Yang is still amazing! Xiao Chen has been taught!" Chen Zhou said with a smile.

"Of course," Yang Yiyi said proudly.

Compared to the past, she has always been praising Chen Zhou. This time she finally got praised by Chen Zhou once, so she was naturally very happy.

However, Yang Yiyi did not intend to hide it 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 immediately asked curiously: "What's the secret?"

Yang Yiyi had a flat expression and said seriously: "Actually, 30simn2mova steel is indeed a kind of steel for military components."

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

"But the purpose of our research is actually that I guessed 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, then reached out to grab Yang Yiyi, ready to punish him.

Unexpectedly, Yang Yiyi was prepared and avoided with a smile.

At this time, a light cough came from the two of them not far away.

Chen Zhou and Yang Yiyi looked at each other.

Peng Jia said awkwardly: "That, I'll bother you. Go to the console first and prepare for the experiment."

After saying that, Peng Jia turned around instantly and quickly left.
Chapter completed!
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