摘要
对Sn-1.3wt%Co合金进行215℃下保温5、10、15 min并淬火的热处理,借助光学显微镜、扫描电镜和能谱仪研究了原始CoSn_(2)相的相变产物和形貌变化。结果发现:热处理导致Sn-1.3wt%Co合金发生了CoSn_(2)→CoSn_(4)相变;原始CoSn_(2)相局部溶解且生成的CoSn_(4)相相较于原始CoSn_(2)相位置有所扩展;两相相似的晶体结构和原子排列是CoSn_(2)相易转变为CoSn_(4)相的重要原因。
Phase transformation products and morphologies of the original CoSn_(2)phase in Sn-1.3wt%Co alloy which was heat treated at 215℃for 5,10,15 min and water quenched respectively were studied by means of OM,SEM and EDS.The results show that CoSn_(2)→CoSn_(4)phase transformation occurs due to the heat treatment.The original CoSn_(2)phase is partially dissolved and the position of resulting CoSn_(4)phase is somewhat expanded relative to that of the original CoSn_(2)phase.The similarity of crystal structure and atomic arrangement of the two phases are the important reasons for the transformation of CoSn_(2)phase into CoSn_(4)phase.
作者
吕冠辰
梁文雷
索玉松
李磊
Lv Guanchen;Liang Wenlei;Suo Yusong;Li Lei(Key Laboratory of Electromagnetic Processing of Materials,Ministry of Education,Northeastern University,Shenyang Liaoning 110819,China)
出处
《金属热处理》
CAS
CSCD
北大核心
2021年第4期16-19,共4页
Heat Treatment of Metals
基金
国家自然科学基金(51874092)
中央高校基本科研业务费(N180905009)。
