Microstructures and mechanical properties of semi-solid squeeze casting ZL104 connecting rod

作     者：王永飞 赵升吨 张晨阳 Yong-fei WANG;Sheng-dun ZHAO;Chen-yang ZHANG

作者机构：西安交通大学机械工程学院西安710049 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2018年第28卷第2期

页      面：235-243页

核心收录：

学科分类：080503[工学-材料加工工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：Project(51335009)supported by the National Natural Science Foundation of China Project(2014JQ7273)supported by the Natural Science Foundation of Shaanxi Province of China Project(CXY1514(1))supported by the Xi’an Science and Technology Plan Projects,China 

主　　题：aluminum alloy semi-solid squeeze casting semi-solid microstructure tensile strength elongation connecting rod 

摘      要：Semi-solid squeeze casting（SSSC） and liquid squeeze casting（LSC） processes were used to fabricate a ZL104 connecting rod, and the influences of the process parameters on the microstructures and mechanical properties were investigated. Results showed that the tensile strength and elongation of the SSSC-fabricated rod were improved by 22% and 17%, respectively, compared with those of the LSC-fabricated rod. For SSSC, the average particle size（APS） and the shape factor（SF） increased with the increase of re-melting temperature（Tr）, whereas the tensile strength and elongation increased first and then decreased. The APS increased with increasing the mold temperature（Tm）, whereas the SF increased initially and then decreased, which caused the tensile strength and elongation to increase initially and then decrease. The APS decreased and the SF increased as squeezing pressure（ps） increased, and the mechanical properties were enhanced. Moreover, the optimal Tr, ps and Tm are 848 K, 100 MPa and 523 K, respectively.