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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：研究生院常务副院长
其他任职：辽宁省凝固控制与数字化制备技术重点实验室主任
性别：男
毕业院校：大连理工大学
学位：博士
所在单位：材料科学与工程学院
学科：材料加工工程
办公地点：研究生院；材料科学与工程学院
联系方式：tmwang@dlut.edu.cn
电子邮箱：tmwang@dlut.edu.cn
In situ synthesis of TiB2 particulate reinforced copper matrix composite with a rotating magnetic field
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论文类型：期刊论文
发表时间：2015-01-01
发表刊物：MATERIALS & DESIGN
收录刊物：SCIE、EI
卷号：65
页面范围：280-288
ISSN号：0264-1275
关键字：Copper matrix composite; Rotating magnetic field; In situ synthesis; Mechanical properties; Microstructure
摘要：In situ TiB2 particulate reinforced copper matrix composites were prepared using Cu-Ti and Cu-B master alloys. Rotating magnetic field (RMF) was employed to improve the dispersion of in situ TiB2 particles during casting. The influences of RMF on the microstructures, TiB2 distribution and mechanical properties of thus prepared composites were investigated. The results show an improved distribution of TiB2 particles in the copper matrix, which resulted in the improvement of mechanical properties of Cu/TiB2 composites. The ultimate tensile strength and Vickers hardness of Cu-1 wt.% TiB2 with a 30% reduction hot rolling and a 90% reduction cool rolling increased from 405 MPa, 125 HV to 470 MPa, 171 HV by the variation of field currents, respectively. Moreover, the action mechanism of RMF on TiB2 distribution in the copper matrix was explained and analyzed. (C) 2014 Elsevier Ltd. All rights reserved.