定向凝固技术在金属材料凝固与相变过程中的应用  

Application of Directional Solidification Technology on Solidification and Phase Transition of Metal Materials

作　　者：丁贤飞 黄宏 冯新 胡海涛 南海 Ding Xianfei;Huang Hong;Feng Xin;Hu Haitao;Nan Hai(AECC Beijing Institute of Aeronautical Materials;Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming Technology;BIAM Co.,Ltd,Beijing)

机构地区：[1]中国航发北京航空材料研究院,北京100095 [2]北京市先进钛合金精密成型工程技术研究中心 [3]北京航空材料研究院有限公司

出　　处：《特种铸造及有色合金》2021年第8期925-931,共7页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(51671026);国家高技术研究发展计划(863计划)资助项目(2012AA03A511);美国福特URP项目(20145121R)。

摘　　要：基于定向凝固快淬技术,通过研究淬火糊状区及附近的显微组织与相特征,获得了合金凝固行为与相变过程规律。结果表明,该技术的应用可以为金属材料凝固过程与相变过程研究提供重要手段,以期对其他金属材料凝固与组织控制的研究提供参考。Based on the directional solidification and rapid quenching technology,the solidification behavior and phase transformation law of the alloys were obtained by investigating the microstructure and phase characteristics in or near the quenched mushy zones.The results reveal that the application of the technology can provide a significant way for the investigation of solidification process and phase transition process of metal materials,which is expected to provide reference for the investigation of solidification and microstructure control of other metal materials.

关 键 词：定向凝固 凝固行为 凝固路径 相转变 

分 类 号：TG111.4[金属学及工艺—物理冶金] TG146.23[金属学及工艺—金属学]