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所属单位：自动化学院
发表刊物：MATERIALS SCIENCE AND TECHNOLOGY
关键字：Primary dendrite arm spacing Al-Cu alloy Weld Phase-field model
摘要：Primary dendrite arm spacing in tungsten inert gas welding pool for Al-4wt%Cu alloys is predicted by a quantitative phase-field model. Transient conditions are obtained by functions of thermal gradient and solidification rate. When the same welding power is given by 3500W and different welding velocities are given by 1.5, 2.0 and 2.5mms(-1), the primary dendrite arm spacing obtained by simulation results is the largest under the welding velocity of 2.0mms(-1). When the same welding velocity is given by 2.5mms(-1) and different welding power is given by 3500, 4000 and 5000W, the primary dendrite arm spacing acquired by simulation results is the largest under the welding power of 5000W. Primary dendrite arm spacing and morphology obtained by simulation results agrees well with experimental findings.
ISSN号：0267-0836
是否译文：否
发表时间：2017-01-01
合写作者：杨微微,樊济宇
通讯作者：王莉,王莉,杨微微