摘要
激光增材制造技术可以实现超高强度钢大型复杂关键重载构件的高性能精确成形,同时还可用于损伤零件的快速修复,在航空航天等领域的应用日益广泛。介绍了激光增材制造低合金超高强度钢的成形特性,评述了激光增材制造过程中热累积对低合金超高强度钢显微组织的影响规律,探讨了显微组织和热处理对激光增材制造低合金超高强度钢力学性能的作用机理,简述了激光增材制造在超高强度钢修复方面的应用,并对激光增材制造超高强度钢的发展趋势进行了预测。
Laser additive manufacturing(LAM)technology can achieve the large-complex components of ultra-high strength steel with high performance,and can also be used for rapid repairing the damaged parts,which is widely used in aerospace and other fields.This paper introduces the forming characteristics of laser additive manufactured low alloy high strength steel,and the influence of the heat accumulated on the microstructure of the LAMed low alloy high strength steel.The mechanism of the microstructure and heat treatment on mechanical properties of LAMed low alloy high strength steel and the application of LAM in repairing ultra-high strength steel are described.The development trends of LAM ultra-high strength steel are prospected.
作者
刘丰刚
张文军
刘奋成
黄春平
郑海忠
郑永生
LIU Fenggang;ZHANG Wenjun;LIU Fencheng;HUANG Chunping;ZHENG Haizhong;ZHENG Yongsheng(National Defence Key Disciplines Laboratory of Light Alloy Processing Science and Technology,Nanchang Hangkong University,Nanchang 330063,China)
出处
《航空制造技术》
CSCD
北大核心
2022年第1期77-85,共9页
Aeronautical Manufacturing Technology
基金
国家自然科学基金地区基金(51865036,52165050)
江西省自然科学基金面上项目(20202BABL204039,20192ACBL21050)
国防重点学科实验室开放基金(EG201903448)
南昌航空大学研究生创新专项资金(YC2020-017)
江西省微小航空发动机重点实验室开放基金(Ef202103434)。
关键词
激光增材制造(LAM)
低合金超高强度钢
微观组织
热处理
力学性能
Laser additive manufacturing(LAM)
Low alloy ultra-high strength steel
Microstructure
Heat treatment
Mechanical property
