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International impact

Professor receives international award for brazing technology

Research

By Jackey Locke

A member of the Faculty of Engineering and Applied Science has been awarded the Robert L. Peaslee Brazing Award.

The award is presented by the American Welding Society to the professor who submits the best original contribution to the society for the technology of brazing. Brazing is a metal-joining technology in which two or more metals are joined by melting in a manufacturing process.

Use in manufacturing

Dr. Ali Nasiri’s paper, Interfacial Microstructure of Laser Brazed AZ31B Magnesium to Sn-Plated Steel Sheet, investigates the brazeability, interfacial microstructure and mechanical integrity of laser-brazed magnesium alloys to steel sheets using a micron-thick layer of Sn (tin) on the steel to act as the interlayer element.

“In this study, we successfully developed, for the first time, a diode laser brazing technology to join immiscible steel-magnesium alloys,” said Dr. Nasiri, who is an assistant professor in the Department of Mechanical Engineering.

“It is expected that the development of this laser-brazing technology for joining of steel-magnesium alloy combinations with a strong metallurgical bond will facilitate increased applications and use of magnesium alloys in the manufacturing industry.”

Repeat honour

This is the third time Dr. Nasiri has won the award.

“I am very honoured to receive this award in recognition for research contributions in the science and technology of welding.” — Dr. Ali Nasiri

“It is always great to see that your work is being recognized by professional communities in both academia and industry,” he said.

“I am very honoured to receive this award in recognition for research contributions in the science and technology of welding.”

The award is sponsored by the Wall Colmonoy Corporation. It honours Robert L. Peaslee, a mechanical engineer who discovered and developed diffusion brazing — a process of active brazing, involving titanium, and diffusion brazing — for his many years of dedicated service to the industry. In place of foils, powder mixtures can be used to affect diffusion-brazed joints.

Dr. Nasiri received the award at the AWS Foundation Recognition event on Nov. 17, which was held in conjunction with the 2016 FABTECH conference in Las Vegas, Nev.

Dr. Greg Naterer, dean, Faculty of Engineering and Applied Science, was delighted to learn of Dr. Nasiri’s award.

“I congratulate Dr. Nasiri on this well-deserved recognition,” said Dr. Naterer. “This honour recognizes the valuable impact that Dr. Nasiri’s research is making to the industry and technical field of brazing technology.”


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