铸造技术2025，Vol.46Issue(2)：160-166,7.DOI:10.16410/j.issn1000-8365.2025.4217
激光增材制造316L及IN718的原位合金化及其微观组织与力学性能研究
Research on In-situ Alloying of 316L and IN718 via Laser Additive Manufacturing and Its Microstructure and Mechanical Properties
摘要
Abstract
With the continuous development of additive manufacturing technology,it has emerged as the core driving force for innovation in the manufacturing sector.Currently,the commonly employed metallic materials for additive manufacturing include stainless steels,nickel-based superalloys,aluminium alloys,and titanium alloys.However,these materials do not fully satisfy the complex and variable application requirements.Hence,the development of new alloys suitable for additive manufacturing is particularly important.This study focuses on the development of a new Fe-Cr-Ni alloy via laser powder bed fusion based on 316L stainless steel and IN718 nickel-based superalloy powders.The results indicate that through laser powder bed fusion,good in situ alloying is achieved,and the alloy exhibits excellent printability.Additionally,this alloy demonstrates good room-temperature tensile properties,with a tensile strength and yield strength of(875±14)MPa and(675±14)MPa,respectively,maintaining an elongation to fracture of 22.9%±3.8%.关键词
激光粉末床熔融/Fe-Cr-Ni合金/微观组织/力学性能Key words
laser powder bed fusion/Fe-Cr-Ni alloy/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
张再云,刘印刚,李淼泉..激光增材制造316L及IN718的原位合金化及其微观组织与力学性能研究[J].铸造技术,2025,46(2):160-166,7.基金项目
陕西省自然科学研究计划(2024JC-ZDXM-33) （2024JC-ZDXM-33）
凝固技术国家重点实验室开放课题(SKLSP202205) （SKLSP202205）
