Volume 1: Student Life Chapter 314 Research on Surface Modification of Materials Using Intense Pulsed Ion Beams
Came 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 was being tricked.
But as for routines, there is no way without routines.
It was also an opportunity given by Chen Zhou himself.
After all, he hadn't actually thought about the topic for his graduation thesis in the Department of Physics, so it was good to have Dean Yang "giving advice".
Maybe we can still use the national laboratory?
This is the reason why Chen Zhou would rather be tricked.
Dean Yang arrived at the experimental area and began to check the preparations for the experiment, while Chen Zhou, as usual, followed Yang Yiyi to familiarize himself with the process of the applied experiment.
Although Chen Zhou has gone through all the information, observation of the experimental site is still an essential step.
"Yiyi, let's go." Chen Zhou said with a smile.
"Yeah." Yang Yiyi nodded slightly and led the way.
The overall experimental setup is not much different, but the focus of the experiment has changed.
Previously, the focus was on the optimization of diodes. Although now the research is on material surface modification, the focus is actually more on the high-power pulsed ion beam itself.
High-power pulsed ion beams, also known as intense pulsed ion beams, are applied 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 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.
It also makes efficient use of ion dose and energy, becoming a new generation of low-cost, high-efficiency, high-productivity and practical ion beam material modification and synthesis process.
At present, some laboratories in the world that have 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 ultrafast heating, melting, and solidification properties of intense pulsed ion beams to process metals, and develop related technologies for intense pulsed ion beam processing of metal surfaces, preparation of thin films, and synthesis of nanopowder materials.
For example, the United States has established the QM Surface Treatment Center, which specializes in using intense pulsed ion beams to perform ultra-fast molten metal surface strengthening processes.
In China, in recent years, with the support of the National Natural Science Foundation and special funds for doctoral programs in universities, the technology of surface modification of materials using intense pulsed ion beams has been developed.
We have conducted relatively comprehensive basic research on its main mechanisms, namely, strong pulse energy effect, thermodynamic process induced by ion irradiation, surface melting pit phenomenon, and large-area uniform ion beam technology.
This experiment is aimed at the surface modification of 30SiMn2MoVA steel and the study of its microstructure and corrosion resistance.
Then, through experimental data, feedback is finally given to the subject itself.
That is, feedback to the study of the intense pulsed ion beam itself.
This is because the high-current ion beams currently used to modify material properties have certain limitations.
The most obvious manifestations are shallow penetration depth, high failure rate, and uneven ion beam energy distribution.
For example, the 6cm large-spot high-current ion beam developed by Russia's Northwestern High-Current Research Institute has a maximum acceleration voltage of only 30kV, and its penetration depth for 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 topic.
The specific research progress is still controlled by Dean Yang.
After thinking for a while, Chen Zhou looked at Yang Yiyi and asked, "Do you know what 30SiMn2MoVA steel is?"
Yang Yiyi chuckled and said, "Are you planning to test me?"
Chen Zhou was slightly stunned, then he said softly: "How dare I? I am asking Teacher Xiao Yang for advice."
Hearing Chen Zhou's words, Yang Yiyi's mouth curled up slightly. Kai Xin is really getting better and better at talking.
But unlike Yang Yiyi's happy smile, not far from them, Ma Zihao was checking the experimental equipment.
Hearing the conversation between the two, Ma Zihao grinned unconsciously. Can you please stop showing off your love? Don’t you know that the scientific researchers here are also single?
Ma Zihao couldn't help but speed up his movements, fully demonstrating his quick eyes and hands as a qualified scientific researcher.
"30SiMn2MoVA steel is actually an alloy structural steel with excellent comprehensive mechanical properties such as high strength and high toughness. It has wide applications in marine development, the automotive industry, energy development, petrochemicals and other fields." Yang Yiyi has done her homework absolutely well.
Yang Yiyi has a characteristic: after she chose the path of physics, her goal was clear.
Moreover, she often has her own thoughts and preparations when it comes to research topics.
Yang Yiyi glanced at Chen Zhou and asked, "Then do you know what the biggest purpose of the research on the surface modification of 30SiMn2MoVA steel is?"
Chen Zhou thought for a moment and then told his speculation.
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 topic, but in fact, there is another reason."
Chen Zhou showed a puzzled look. After thinking carefully, he thought of a possibility and said, "Are you talking about the specific application?"
Yang Yiyi nodded and chuckled, "Yes, this is applied research. You are thinking too much."
Seeing Chen Zhou looking a little embarrassed, Yang Yiyi continued, "In fact, 30SiMn2MoVA steel has always been used as a military component steel. Its working environment is changeable, and the corrosion resistance of the material surface is greatly affected."
"I understand." After hearing what Yang Yiyi said, Chen Zhou suddenly understood.
He was wondering, how could the research topics at the national laboratory be purely technical research?
"Have you figured it out?" Yang Yiyi looked like she was about to praise me.
"Yeah, Teacher Yang is indeed amazing! Student Chen has learned a lot!" Chen Zhou said with a smile.
"Of course." Yang Yiyi said proudly.
Compared to the past, she had always been the one praising Chen Zhou. This time, she was finally praised by Chen Zhou, 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 look, Chen Zhou asked curiously, "What secret?"
Yang Yiyi's expression was serious, and she said, "In fact, 30SiMn2MoVA steel is indeed a kind of steel used for military parts."
"Huh?" Chen Zhou didn't quite understand.
"But the purpose of our research is actually just a blind guess like you, hahaha." The serious expression on Yang Yiyi's face suddenly turned into a playful smile.
Chen Zhou smiled and shook his head, then reached out to grab Yang Yiyi, ready to punish her.
Unexpectedly, Yang Yiyi was well prepared and dodged with a smile.
At this time, a light cough was heard not far away from the two of them.
Chen Zhou and Yang Yiyi looked over together.
Peng Jia said rather awkwardly: "Well, sorry to bother you, let's go... to the control console and prepare for the experiment."
After saying that, Peng Jia turned around and left quickly.
The atmosphere in this laboratory has really changed...
