摘要
17-4PH马氏体不锈钢具有高强高韧以及耐腐蚀等优异性能,在航空航天、核能和民用工业等领域得到广泛的应用。增材制造技术通过离散堆积的制备方法,能够实现复杂异形零部件的成形,满足装备迭代的需求。综述了国内外增材制造17-4PH的研究成果,针对增材制造微小熔池、快速熔凝、复杂热历史冶金特点,介绍影响增材制造17-4PH试样致密度的因素,阐述其相构成、微观组织和力学性能,简述后处理对17-4PH力学性能的影响规律,最后对增材制造17-4PH的发展进行展望。
17-4PH martensitic stainless steel possesses high strength,high toughness,good corrosion resistance and other excellent properties,and is widely used in aerospace,nuclear and civil industries.Additive manufacturing technology,using the preparation method of discrete accumulation,can accomplish the manufacturing of complex shaped parts to satisfy the requirements of equipment iteration.Research results of additive manufacturing 17-4PH at domestic and foreign is summarized,factors affecting the density of additive manufacturing 17-4PH specimens are introduced under the characteristics of additive manufacturing with small molten pool,rapid melting and complex thermal history.Meanwhile,the phase composition,microstructure and mechanical properties of additive manufacturing are reviewed.The influence of post-treatment on mechanical properties is briefly elaborated,and finally the development of additive manufacturing 17-4PH is prospected.
作者
刘世锋
魏钢
王岩
周健
马党参
迟宏宵
LIU Shi-feng;WEI Gang;WANG Yan;ZHOU Jian;MA Dang-shen;CHI Hong-xiao(School of Metallurgical and Engineering,Xi′an University of Architecture and Technology,Xi′an 710055,Shaanxi,China;Research Institute of Special Steels,Center Iron and Steel Research Institute,Beijing 100081,China)
出处
《中国冶金》
CAS
北大核心
2022年第6期15-25,共11页
China Metallurgy
基金
国家自然科学基金资助项目(52104341)
国家重点研发计划合作单位资助项目(2021YFB3701802-03,2021YFB3701903-03)
西安市先进制造业技术攻关项目(2121XJZZ0034)。
关键词
增材制造
17-4PH
相结构
显微组织
力学性能
后处理
additive manufacturing
17-4PH
phase structure
microstructure
mechanical property
post-treatment
