合金粉末组合烧结成形NiAl基合金筒形构件  

NiAl-based alloy cylindrical component formed by alloy powders combined sintering

作　　者：王东君 宁汉维[1,2] 秦少华 赵杰[1,2] 翟斌 刘钢 WANG Dong-jun;NING Han-wei;QIN Shao-hua;ZHAO Jie;ZHAI Bin;LIU Gang(National Key Laboratory for Precision Hot Processing of Metals,Harbin Institute of Technology,Harbin 150001,China;School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China;CSSC Systems Engineering Research Institute,Beijing 100094,China)

机构地区：[1]哈尔滨工业大学金属精密热加工国家级重点实验室,黑龙江哈尔滨150001 [2]哈尔滨工业大学材料科学与工程学院,黑龙江哈尔滨150001 [3]中国船舶集团有限公司系统工程研究院,北京100094

出　　处：《塑性工程学报》2024年第7期9-14,共6页Journal of Plasticity Engineering

基　　金：国家自然科学基金资助项目(52175298)。

摘　　要：基于快速凝固和热压烧结工艺,设计了合金粉末组合烧结工艺以成形高性能NiAl基合金筒形构件。结果表明:NiAl基合金组合烧结界面的结合良好,界面性能优异,光滑与粗糙表面样品界面的结合性能相似。此外,NiAl基合金组合烧结界面没有孔洞、裂纹等缺陷,显示出良好的界面结合,通过界面性能测试分析验证了组合烧结方法成形高性能NiAl基合金构件的可行性。此外,基于NiAl基合金组合烧结工艺,成形出径厚比为6、外径Φ60 mm、高度60 mm的NiAl基合金筒形件,构件整体致密度均匀性良好,改进了热压烧结成形大径厚比筒形构件的致密度不均匀难题。Based on the rapid solidification and hot-pressing sintering process,the alloy powders combined sintering process was designed to form high-performance NiAl-based alloy cylindrical components.The results show that the combined sintering interface of NiAl-based alloy is good,and the interface properties are excellent.The bonding performance of the interfaces between smooth and rough surfaces of sample is similar.Furthermore,there are no defects such as holes and cracks at the combined sintering interface of NiAl-based alloy,which shows a good interfacial bonding.The feasibility of forming high-performance NiAl-based alloy components by the combined sintering method was verified by the interface performance test and analysis.Moreover,based on the combined sintering process of NiAl-based alloy,the NiAl-based alloy cylindrical components with diameter-thickness ratio of 6,outer diameter ofΦ60 mm,height of 60 mm were formed,and the overall density uniformity of the components is good,which improves the problem of uneven density of the large diameterthickness ratio cylindrical components formed by hot pressing sintering.

关 键 词：NIAL基合金 组合烧结 筒形构件 组织性能 

分 类 号：TG306[金属学及工艺—金属压力加工]