Wei Yanhong

Professor   Supervisor of Doctorate Candidates  

Gender:Female

Alma Mater:哈尔滨工业大学

Education Level:哈尔滨工业大学

Degree:Doctoral Degree in Engineering

School/Department:College of Material Science and Technology

Discipline:Material Process Engineering. Material Science

Business Address:南航将军路小区东区材料学院A409

Contact Information:18951874731

E-Mail:


Paper Publications

Onset of Curved Dendrite Growth in an Al-Cu Welding Pool: A Phase Field Study

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Affiliation of Author(s):材料科学与技术学院

Journal:JOM

Key Words:MONTE-CARLO-SIMULATION DIRECTIONAL SOLIDIFICATION TRANSIENT CONDITIONS GRAIN-GROWTH ALLOY MICROSTRUCTURE PARAMETERS HEAT

Abstract:A phase field model is developed to predict curved dendrite growth in the gas tungsten arc (GTA) welding pool of an Al-Cu alloy. The equations of temperature gradient, pulling velocity and dendrite growth orientation are proposed to consider the transient solidification process during welding. Solidification microstructures and solute diffusion along the fusion boundary in the welding pool are predicted by using the phase field model coupled with transient solidification conditions. Predicted primary dendrites are curved and point toward the welding direction. Welding experiments are carried out to observe solidification microstructures of the weld. Comparisons of simulation results with experimental measurements are conducted. Predicted dendritic morphology, dendrite growth orientation, primary dendrite arm spacing and initial cell spacing give a good agreement with experimental measurements.

ISSN No.:1047-4838

Translation or Not:no

Date of Publication:2018-05-01

Co-author:Wang,Lei

Correspondence Author:Wei Yanhong

Pre One:Thermoelectric currents and thermoelectric-magnetic effects in full-penetration laser beam welding of aluminum alloy with magnetic field support

Next One:Phase field modeling of solidification microstructure evolution during welding

Profile


魏艳红,南京航空航天大学教授、博导,英国剑桥大学访问学者,国际焊接学会(IIW)C-XI委中国代表,中国机械工程学会江苏省焊接学会副理事长。哈尔滨工业大学焊接专业博士毕业后留校工作2006年2月引进南京航空航天大学。

长期从事焊接工艺智能设计及仿真优化研究工作,形成了自主知识产权的系列焊接工程应用软件,可以完成焊接性分析、焊接工艺智能设计、焊接工艺智能评定、焊接在线监测、焊接应力变形分析、焊接组织与力学性能预测。所设计的软件成功应用于各种航天结构件、军机部件、发动机机匣、雷达天线、轿车车体、工程机械、动车车体焊接中。

致力于焊接模拟仿真人才培养,为哈尔滨工业大学、华中科技大学、南京航空航天大学、南京理工大学、重庆大学、合肥工业大学等培养和输送了优秀教师。

 

 

研究方向:

学科研究方向一:材料加工工程

焊接过程模拟,焊接组织性能分析与预测,焊接数字化软件设计,电弧增材制造基础研究

学科研究方向二:材料学

发表学术论文,出版专著情况:

发表论文200余篇,SCI收录80余篇。

科研成果获奖及专利:

获得专利和软件著作权近二十余项。

承担的科研项目情况:

承担和完成了4项国家自然基金项目,参加了两项国家自然基金项目,承担了企业横向课题50余项。

指导研究生情况:

指导博士生20余人,毕业10余人。