SLM 工艺参数对SLMed ODS-CLF-1 钢组织和显微硬度的影响研究

doi:10.16568/j.0254-6086.202503008

核聚变与等离子体物理 ›› 2025, Vol. 45 ›› Issue (3): 301-309.DOI: 10.16568/j.0254-6086.202503008

SLM 工艺参数对SLMed ODS-CLF-1 钢组织和显微硬度的影响研究

杨国平¹，廖洪彬¹，张龙¹，王晓宇¹，熊良银²，程银芬³

(1. 核工业西南物理研究院，成都 610041；2. 中国科学院金属研究所，沈阳 110016；3. 西南交通大学，成都 610031)

收稿日期:2023-11-17 修回日期:2025-04-24 出版日期:2025-09-15 发布日期:2025-09-29
作者简介:杨国平(1990-)，男，甘肃定西人，助理研究员，从事聚变堆包层结构材料的研究。
基金资助:
国家重点研发计划项目(2022YFE03160002)；西物创新行动项目(202301XWCX004-01)

Study on the effect of SLM process parameter on microstructure and microhardness of SLMed ODS-CLF-1 steel

YANG Guo-ping¹, LIAO Hong-bin¹, ZHANG Long¹, WANG Xiao-yu¹, XIONG Liang-yin², CHENG Yin-fen³#br#

(1. Southwestern Institute of Physics, Chengdu 610041；2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016；3. Southwest Jiaotong University, Chengdu 610031)

Received:2023-11-17 Revised:2025-04-24 Online:2025-09-15 Published:2025-09-29

摘要/Abstract

摘要：

采用不同选区激光熔化(SLM)工艺参数(激光功率和扫描速度)制备了SLMed ODS-CLF-1 钢。利用OM、SEM、TEM、EDS 和显微硬度测试等手段研究了不同SLM 工艺参数对SLMed ODS-CLF-1 钢微观组织和力学性能的影响。结果表明，当激光功率为260~300 W，扫描速度为400~600 mm·s^-1时，SLM 工艺制备的SLMed ODS-CLF-1 钢打印质量较佳、微观缺陷数量较少、显微硬度较高。层间呈堆叠的鱼鳞状形貌，微观组织主要由柱状晶和少量等轴晶组成，铁素体基体中弥散分布有大量纳米析出物，析出物呈球状和芯-壳结构。显微硬度均高于240 HV0.2，优于组织为回火马氏体的CLF-1 钢。

关键词: 选区激光熔化(SLM), 工艺参数, 增材制造, SLMed ODS-CLF-1 钢, 微观组织, 显微硬度

Abstract:

The SLMed ODS-CLF-1 steel was fabricated by selecting different SLM process parameters (laser power and scan speed). The effects of different SLM process parameters on the microstructure and microhardness of SLMed ODS-CLF-1 steel were studied by means of OM, SEM, TEM, EDS and microhardness test. The results show that when the laser power is 260~300 W and the scan speed is 400~600 mm·s‒1, the SLMed ODS-CLF-1 steel featured better internal quality, and fewer microdefects. The SLMed ODS-CLF-1 steel microstructure displays stacked-layers with fish scale shape and mainly consists of columnar crystals and minor equiaxed crystals, in which numerous nanoprecipitates with spherical shape and core-shell structure are dispersed in the ferrite matrix. The microhardness reaches over 240 HV0.2 and is obviously better than CLF-1 steel with tempered martensite.

Key words: Selective laser melting(SLM), Process parameter, Additive manufacturing, SLMed ODS-CLF-1 , steel, Microstructure, Microhardness

中图分类号:

TG142

杨国平, 廖洪彬, 张龙, 王晓宇, 熊良银, 程银芬. SLM 工艺参数对SLMed ODS-CLF-1 钢组织和显微硬度的影响研究 [J]. 核聚变与等离子体物理, 2025, 45(3): 301-309.

YANG Guo-ping, LIAO Hong-bin, ZHANG Long, WANG Xiao-yu, XIONG Liang-yin, CHENG Yin-fen. Study on the effect of SLM process parameter on microstructure and microhardness of SLMed ODS-CLF-1 steel [J]. Nuclear Fusion and Plasma Physics, 2025, 45(3): 301-309.

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SLM 工艺参数对SLMed ODS-CLF-1 钢组织和显微硬度的影响研究

Study on the effect of SLM process parameter on microstructure and microhardness of SLMed ODS-CLF-1 steel

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