固溶时效对SLM成形316L不锈钢块体件显微组织及硬度的影响

doi:10.13251/j.issn.0254-6051.2022.08.040

金属热处理 ›› 2022, Vol. 47 ›› Issue (8): 237-241.DOI: 10.13251/j.issn.0254-6051.2022.08.040

固溶时效对SLM成形316L不锈钢块体件显微组织及硬度的影响

朱德荣¹, 李豪^2,3, 柳翊^2,3, 王利鸽², 陈智勇¹, 张慧贤¹, 梁莉¹

1.洛阳理工学院智能制造学院, 河南洛阳 471023;
2.洛阳理工学院材料科学与工程学院, 河南洛阳 471023;
3.河南省建筑型材智能制造工程技术研究中心, 河南洛阳 471023

收稿日期:2022-03-31 修回日期:2022-06-27 出版日期:2022-08-25 发布日期:2022-09-19
通讯作者: 李豪,讲师,博士,E-mail:lihao_2013@126.com
作者简介:朱德荣(1972—),男,副教授,博士,主要研究方向为现代先进加工方法,E-mail:zderong@163.com。
基金资助:
河南省科技攻关计划(222102220042);河南省高等学校重点科研项目(21B430012,16A430020)

Effect of solution and aging on microstructure and hardness of 316L stainless steel block formed by SLM

Zhu Derong¹, Li Hao^2,3, Liu Yi^2,3, Wang Lige², Chen Zhiyong¹, Zhang Huixian¹, Liang Li¹

1. School of Intelligent Manufacturing, Luoyang Institute of Science and Technology, Luoyang Henan 471023, China;
2. School of Materials Science and Engineering, Luoyang Institute of Science and Technology, Luoyang Henan 471023, China;
3. Henan Intelligent Manufacturing Engineering Technology Research Center for Building Profile, Luoyang Henan 471023, China

Received:2022-03-31 Revised:2022-06-27 Online:2022-08-25 Published:2022-09-19

摘要/Abstract

摘要： 采用选区激光熔化技术(Selective laser melting, SLM)成功制备了316L不锈钢块体件,借助光镜(OM)和扫描电镜(SEM)及维氏硬度计研究了不同时效工艺(时效温度分别为650 ℃和850 ℃)对SLM成形316L不锈钢块体件显微组织以及显微硬度的影响。结果表明,SLM成形316L不锈钢块体件显微组织主要由细小柱状晶和蜂窝状晶粒组成。“层-层”和“道-道”熔池边界清晰可见,经固溶时效后边界基本消失,但晶界清晰可见,再结晶晶粒呈合并生长方式长大。650 ℃时效时,试样中少量M₂₃C₆分布于晶界,显微硬度相对较高;随着时效温度的升高,850 ℃时效后试样的晶粒进一步长大,沿晶界形成了大量不连续M₂₃C₆。

关键词: 选区激光熔化技术, 316L不锈钢, 熔池边界, 固溶时效, 显微硬度

Abstract: 316L stainless steel block was successfully prepared by selective laser melting (SLM) technology. The effect of aging temperature(650 ℃ and 850 ℃) on microstructure and microhardness of 316L stainless steel block formed by SLM was studied by means of optical microscope (OM), scanning electron microscope (SEM) and Vickers hardness tester. The results show that the microstructure of 316L stainless steel block formed by SLM is mainly composed of fine columnar grains and honeycomb grains. The boundaries of “layer-layer” and “channel-channel” molten pools are clearly visible. After solution and aging, the boundaries of “layer-layer” and “channel-channel” molten pools disappear, but the grain boundaries are clearly visible and the recrystallized grain grows in a combined growth mode. A small amount of M₂₃C₆ are distributed at grain boundaries in specimen after aging at 650 ℃, and the microhardness is relatively high. With the increase of aging temperature, the grain of specimen after aging at 850 ℃ grows further, and a large amount of discontinuous M₂₃C₆ are formed along the grain boundaries.

Key words: selective laser melting, 316L stainless steel, molten pool boundary, solution and aging, microhardness

中图分类号:

TG142

朱德荣, 李豪, 柳翊, 王利鸽, 陈智勇, 张慧贤, 梁莉. 固溶时效对SLM成形316L不锈钢块体件显微组织及硬度的影响[J]. 金属热处理, 2022, 47(8): 237-241.

Zhu Derong, Li Hao, Liu Yi, Wang Lige, Chen Zhiyong, Zhang Huixian, Liang Li. Effect of solution and aging on microstructure and hardness of 316L stainless steel block formed by SLM[J]. Heat Treatment of Metals, 2022, 47(8): 237-241.

参考文献

[1]苗佩, 牛方勇, 马广义, 等. 沉积效率对激光近净成形316L不锈钢组织及性能的影响[J]. 光电工程, 2017, 44(4): 410-417.
Miao Pei, Niu Fangyong, Ma Guangyi, et al. Effect of deposition efficiency on microstructure and property of 316L stainless steelfabricated by laser engineered net shaping[J]. Opto-Electronic Engineering, 2017, 44(4): 410-417.
[2]Frazier W E. Metal additive manufacturing: A review[J]. Journal of Materials Engineering and Performance, 2014, 23(6): 1917-1928.
[3]Tolosa I, Garciandía F, Zubiri F, et al. Study of mechanical properties of AISI 316 stainless steel processed by “selective laser melting”, following different manufacturing strategies[J]. International Journal of Advanced Manufacturing Technology, 2010, 51: 639-647.
[4]Cherry J A, Davies H M, Mehmood S, et al. Investigation into the effect of process parameters on microstructural and physical properties of 316L stainless steel parts by selective laser melting[J]. International Journal of Advanced Manufacturing Technology, 2015, 76: 869-879.
[5]边培莹. 热处理工艺对316L不锈钢粉末激光选区熔化成形的残余应力及组织的影响[J]. 材料热处理学报, 2019, 40(4): 90-97.
Bian Peiying. Effect of heat treatment on residual stress and microstructure of 316L stainless steel powder formed by selective laser melting[J]. Transactions of Materials and Heat Treatment, 2019, 40 (4): 90-97.
[6]徐孟奇, 谭峰亮, 蒋博文, 等. SLM成形316L不锈钢热处理过程中显微组织演变[J]. 热加工工艺, 2021, 50(10): 113-115, 118.
Xu Mengqi, Tan Fengliang, Jiang Bowen, et al. Microstructure evolution of 316L stainless steel formed by SLM during heat treatment[J]. Hot Working Technology, 2021, 50(10): 113-115, 118.
[7]李斌, 董秀萍, 黄明吉. 热处理对SLM 316L不锈钢螺旋微丝微观组织和力学性能的影响[J]. 金属热处理, 2021, 46(7): 103-107.
Li Bin, Dong Xiuping, Huang Mingji. Effect of heat treatment on microstructure and mechanical properties of SLM 316L stainless steel spiral microwire[J]. Heat Treatment of Metals, 2021, 46(7): 103-107.
[8]张仁奇, 樊磊, 周宝刚, 等. 选区激光熔化316L不锈钢的各向组织与性能[J]. 金属热处理, 2020, 45(9): 161-166.
Zhang Renqi, Fan Lei, Zhou Baogang, et al. Microstructure and properties of selective laser melted 316L stainless steel in different directions[J]. Heat Treatment of Metals, 2020, 45(9): 161-166.
[9]Wei Q S, Li S, Han C J, et al. Selective laser melting of stainless-steel/nano-hydroxyapatite composites for medical applications: Microstructure, element distribution, crack and mechanical properties[J]. Journal of Materials Processing Technology, 2015, 222: 444-453.
[10]Yasa E, Kruth J P. Microstructural investigation of selective laser melting 316L stainless steel parts exposed to laser re-melting[J]. Procedia Engineering, 2011, 19: 389-395.
[11]尹燕, 刘鹏宇, 路超, 等. 选区激光熔化成形316L不锈钢微观组织及拉伸性能分析[J]. 焊接学报, 2018, 39(8): 77-81.
Yin Yan, Liu Pengyu, Lu Chao, et al. Microstructure and tensile properties of selective laser melting forming 316L stainless steel[J]. Transactions of the China Welding Institution, 2018, 39(8): 77-81.
[12]Wang D, Song C H, Yang Y Q, et al. Investigation of crystal growth mechanism during selective laser melting and mechanical property characterization of 316L stainless steel parts[J]. Materials and Design, 2016, 100: 291-299.
[13]徐亮, 杨可, 王秋雨, 等. 热处理对电弧增材制造316L不锈钢组织和性能的影响[J]. 电焊机, 2020, 50(10): 29-34.
Xu Liang, Yang Ke, Wang Qiuyu, et al. Effect of heat treatment on microstructure properties of austenitic stainless steel 316L using arc additive manufacturing[J]. Electric Welding Machine, 2020, 50(10): 29-34.
[14]刘小萍, 田文怀, 杨峰, 等. 时效处理SUS316L不锈钢中析出相的晶体结构和化学成分[J]. 材料热处理学报, 2006, 27(3): 81-85.
Liu Xiaoping, Tian Wenhuai, Yang Feng, et al. Crystal structure and chemical composition of precipitates in an aged SUS316L stainless steel[J]. Transactions of Materials and Heat Treatment, 2006, 27(3): 81-85.
[15]李京赞, 刘玉德, 石文天, 等. 选区激光熔化成形和热处理工艺参数对316L钢试块的力学性能和表面质量的影响[J]. 上海金属, 2019, 41(2): 18-23, 34.
Li Jingzan, Liu Yude, Shi Wentian, et al. Effects of process parameters of both selective laser melting forming and heat treating on mechanical properties and surface quality of 316L steel test block[J]. Shanghai Metals, 2019, 41(2): 18-23, 34.
[16]丁利, 李怀学, 王玉岱, 等. 热处理对激光选区熔化成形316不锈钢组织与拉伸性能的影响[J]. 中国激光, 2015, 42(4): 187-193.
Ding Li, Li Huaixue, Wang Yudai, et al. Heat treatment on microstructure and tensile strength of 316 stainless steel by selective laser melting[J]. Chinese Journal of Lasers, 2015, 42(4): 187-193.
[17]程灵钰, 朱小刚, 刘正武, 等. 热处理对激光选区熔化成形316L不锈钢组织和力学性能的影响[J]. 材料热处理学报, 2020, 41(7): 80-86.
Cheng Lingyu, Zhu Xiaogang, Liu Zhengwu, et al. Effect of heat treatment on microstructure and mechanical properties of 316L stainless steel prepared by selective laser melting[J]. Transactions of Materials and Heat Treatment, 2020, 41(7): 80-86.

固溶时效对SLM成形316L不锈钢块体件显微组织及硬度的影响

Effect of solution and aging on microstructure and hardness of 316L stainless steel block formed by SLM

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李梦欢, 张露友, 徐海卫, 董欣欣, 杨子旋, 田亚强, 陈连生. 低碳高强舰船用钢固溶时效后的组织与性能[J]. 金属热处理, 2022, 47(7): 34-39.
[2]	周留研, 刘利国, 马晖, 陈东旭. AZ31B镁合金盐浴碳氮钒共渗工艺[J]. 金属热处理, 2022, 47(7): 259-263.
[3]	李鹏, 孔令华, 练国富, 黄旭, 李铸. 体能量密度对SLM成形316L不锈钢耐腐蚀性的影响[J]. 金属热处理, 2022, 47(5): 148-154.
[4]	张子延, 陈君, 陈晓亚, 李全安, 刘建鑫. 固溶时效处理对Mg-4Sm-3Gd-0.5Zr合金显微组织和耐蚀性能的影响[J]. 金属热处理, 2022, 47(4): 10-16.
[5]	李梦, 武美萍, 陆佩佩, 赵子硕, 缪小进. 选区激光熔化MnSi₂增强316L不锈钢复合材料的表面质量及耐蚀性能[J]. 金属热处理, 2022, 47(4): 165-170.
[6]	王敬元, 吴松全, 张博华, 辛社伟, 杨义, 王皞, 黄爱军. 固溶时效处理对BT25y钛合金显微组织及硬度的影响[J]. 金属热处理, 2022, 47(3): 14-19.
[7]	周钟平, 张小娟, 白鹭, 余方印, 闵永安. T250钢离子渗氮后的组织和性能[J]. 金属热处理, 2022, 47(3): 210-214.
[8]	师佑杰, 李永刚, 李文辉, 王兴富. 深冷处理对TC4钛合金表面性能的影响[J]. 金属热处理, 2022, 47(2): 183-187.
[9]	张孟良, 汤文博, 李百奇, 王笑生, 黎文强, 王腾飞. 等离子熔覆添加和内生联合WC颗粒增强铁基涂层的组织和性能[J]. 金属热处理, 2022, 47(2): 200-204.
[10]	李敏娜, 马保飞, 郭金明, 吴晨, 肖松涛. 高强韧TB8钛合金的热处理制度[J]. 金属热处理, 2021, 46(9): 116-119.
[11]	丁轩, 甘玉荣, 蒋爱娟, 李辉, 杨明球. 时效处理对7A55铝合金微观组织和性能的影响[J]. 金属热处理, 2021, 46(9): 120-123.
[12]	缪小进, 夏思海, 武美萍, 俞经虎, 赵子硕, 崔宸, 张春雷. 添加CeO₂对铝合金表面激光熔覆铝钛熔覆层性能的影响[J]. 金属热处理, 2021, 46(9): 234-240.
[13]	韩茜, 李茂扬, 秦国飞, 李旭东, 董超, 张美丽, 代卫丽. 固溶时效处理对8030铝合金导线组织性能的影响[J]. 金属热处理, 2021, 46(8): 125-132.
[14]	贺利. 0Cr17Ni4Cu4Nb不锈钢底座的真空热处理[J]. 金属热处理, 2021, 46(8): 189-191.
[15]	李海涛, 樊帅奇, 张蕾涛, 戴姣燕, 徐金富. 45钢激光氮合金化涂层的组织性能及工艺优化[J]. 金属热处理, 2021, 46(8): 209-213.