ZL104合金Sr变质效果的热分析研究  

Thermal Analysis of Sr Modification Effect of ZL104 Alloy

作　　者：徐小林 牟宜华 李孙博 赵忠兴[2] 

机构地区：[1]重庆衡山机械有限责任公司,重庆 [2]沈阳理工大学,辽宁 沈阳

出　　处：《冶金工程》2021年第4期181-187,共7页Metallurgical Engineering

摘　　要：本文使用了一种自主研发的适用于在线检测的热分析技术来研究ZL104铝硅合金的Sr变质效果,通过金相显微镜观察合金试样的共晶组织与用热分析技术所获得的数据进行比较。通过试验分析,变质保温时间延长,ΔTER也逐渐增大,变质效果也越来越好,变质程度和热分析参数ΔTER之间有着良好的对应关系。因此,使用热分析技术可以更方便,更有效地判断铝硅合金的变质效果等级,而无须通过观察金相组织来完成,在生产实践中大大节省了时间。In this paper, a self-developed thermal analysis technology suitable for online detection is used to study the Sr modification effect of ZL104 aluminum-silicon alloy. The eutectic structure of the alloy sample is observed through a metallographic microscope and compared with the data obtained by thermal analysis technology. Through the test analysis, with the extension of the modification and holding time, the ΔTER is gradually increasing, and the modification effect is getting better and better. There is a good corresponding relationship between the degree of modification and the thermal analysis parameter ΔTER. Therefore, the use of thermal analysis technology can be more convenient and effective to judge the modification effect level of aluminum-silicon alloy, without the need to observe the metallographic structure and other complicated and time-consuming processes to judge, which greatly saves time in production practice.

关 键 词：铝硅合金 变质 热分析 冷却曲线 共晶温度 

分 类 号：TG1[金属学及工艺—金属学]