Research Process of Microstructure and Mechanical Properties of Laser Additive Manufactured Low Alloy Ultra-High Strength Steel

LIU Fenggang; ZHANG Wenjun; LIU Fencheng; HUANG Chunping; ZHENG Haizhong; ZHENG Yongsheng

doi:10.16080/j.issn1671-833x.2022.01/02.077

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Research Process of Microstructure and Mechanical Properties of Laser Additive Manufactured Low Alloy Ultra-High Strength Steel

更新时间：2025-07-30

- Research Process of Microstructure and Mechanical Properties of Laser Additive Manufactured Low Alloy Ultra-High Strength Steel
- Aeronautical Manufacturing Technology Vol. 65, Issue 1/2, (2022)
- 作者机构：
  
  南昌航空大学轻合金加工科学与技术国防重点学科实验室,南昌,330063
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.01/02.077
  CLC：
- Published：2022
- 稿件说明：
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刘丰刚，张文军，刘奋成，黄春平，郑海忠，郑永生. 激光增材制造低合金超高强度钢的组织与力学性能研究进展[J]. 航空制造技术, 2022, 65(1/2): 77-85. LIU Fenggang, ZHANG Wenjun, LIU Fencheng, HUANG Chunping, ZHENG Haizhong, ZHENG Yongsheng. Research Process of Microstructure and Mechanical Properties of Laser Additive Manufactured Low Alloy Ultra-High Strength Steel[J]. Aeronautical Manufacturing Technology, 2022, 65(1/2): 77-85.

LIU Fenggang, ZHANG Wenjun, LIU Fencheng, et al. Research Process of Microstructure and Mechanical Properties of Laser Additive Manufactured Low Alloy Ultra-High Strength Steel[J]. Aeronautical Manufacturing Technology, 2022, 65(1/2).
刘丰刚，张文军，刘奋成，黄春平，郑海忠，郑永生. 激光增材制造低合金超高强度钢的组织与力学性能研究进展[J]. 航空制造技术, 2022, 65(1/2): 77-85. LIU Fenggang, ZHANG Wenjun, LIU Fencheng, HUANG Chunping, ZHENG Haizhong, ZHENG Yongsheng. Research Process of Microstructure and Mechanical Properties of Laser Additive Manufactured Low Alloy Ultra-High Strength Steel[J]. Aeronautical Manufacturing Technology, 2022, 65(1/2): 77-85. DOI： 10.16080/j.issn1671-833x.2022.01/02.077.

LIU Fenggang, ZHANG Wenjun, LIU Fencheng, et al. Research Process of Microstructure and Mechanical Properties of Laser Additive Manufactured Low Alloy Ultra-High Strength Steel[J]. Aeronautical Manufacturing Technology, 2022, 65(1/2). DOI： 10.16080/j.issn1671-833x.2022.01/02.077.

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。

Abstract

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.

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