Zhang Zhao
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Main positions:Professor in Process Mechanics
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:Department of Engineering Mechanics, Dalian University of Technology
Discipline:mechanics of manufacturing process. Engineering Mechanics. Computational Mechanics
Business Address:Room 619,Integrated Laboratory building (1#)
Contact Information:+86-411-84708432 zhangz@dlut.edu.cn
E-Mail:zhangz@dlut.edu.cn
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Date of Publication:2022-10-09
Journal:航空材料学报
Issue:4
Page Number:19-24
ISSN No.:1005-5053
Abstract:KWN model was used to establish the precipitation evolution model of friction stir welding of Al-Mg-Si alloy.The yield strength was divided into three parts: the contribution from grain size, the contribution from solid solution and the contribution from the precipitations.Based on this model, the yield strength and hardness of friction stir weld was predicted.The effect of post weld artificial ageing on mechanical properties of friction stir weld was further investigated.The results indicate that longer holding time can be beneficial to the recovery of mechanical properties in the stirring zone.Higher temperature can lead to quick recovery of mechanical properties in the stirring zone, but when the holding temperature is higher than 200 ℃, longer holding time can lead the base metal softened, which is harmful to the service of friction stir welds.The mechanical property in the heat affected zone cannot be improved by post weld artificial ageing.
Note:新增回溯数据
Zhang Zhao, Ph.D., Professor in Process Mechanics.
Editorial member in Coatings (IF:2.881) from 2020 to 2022.
Editorial member in Crystals (IF:2.589) from 2020 to 2022.
Younth editorial member in Journal of Central South University(IF:1.716) from 2020 to 2022.
Professor Zhang has published more than 60 SCI publications with over 1100 citations. He served as reviewers for more than 30 international journals. His main pulications can be found:
https://orcid.org/0000-0001-7181-8617
https://publons.com/researcher/1987190/zhao-zhang/
The scientific research focuses on experimental and numerical works on friction stir welding/processing/additive manufacturing, numerical modelling and simulation of additive manufacuring, topological design of phononic crystals, locomotive and high speed train design.
