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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：材料科学与工程学院院长、党委副书记
其他任职：辽宁省高熵合金材料工程研究中心常务副主任、大连理工大学滇西产业发展研究院先进材料制备及装备技术工程研究中心主任
性别：男
毕业院校：西北工业大学
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. 材料学. 材料物理与化学
办公地点：辽宁省凝固控制与数字化制备技术重点实验室315室
联系方式：0411-84709400
电子邮箱：luyiping@dlut.edu.cn
A promising structure for fabricating high strength and high electrical conductivity copper alloys
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论文类型：期刊论文
发表时间：2016-02-09
发表刊物：SCIENTIFIC REPORTS
收录刊物：SCIE、PubMed
卷号：6
页面范围：20799
ISSN号：2045-2322
摘要：To address the trade-off between strength and electrical conductivity, we propose a strategy: introducing precipitated particles into a structure composed of deformation twins. A Cu-0.3% Zr alloy was designed to verify our strategy. Zirconium was dissolved into a copper matrix by solution treatment prior to cryorolling and precipitated in the form of Cu5Zr from copper matrix via a subsequent aging treatment. The microstructure evolutions of the processed samples were investigated by transmission electron microscopy and X-ray diffraction analysis, and the mechanical and physical behaviours were evaluated through tensile and electrical conductivity tests. The results demonstrated that superior tensile strength (602.04 MPa) and electrical conductivity (81.4% IACS) was achieved. This strategy provides a new route for balancing the strength and electrical conductivity of copper alloys, which can be developed for large-scale industrial application.