基于SLM工艺制备的C250马氏体时效钢的工艺优化及其组织

doi:10.13251/j.issn.0254-6051.2023.03.025

金属热处理 ›› 2023, Vol. 48 ›› Issue (3): 143-150.DOI: 10.13251/j.issn.0254-6051.2023.03.025

基于SLM工艺制备的C250马氏体时效钢的工艺优化及其组织

刘再西^1,2, 卢德宏¹, 王长军², 刘雨²

1.昆明理工大学材料科学与工程学院, 云南昆明 650032;
2.钢铁研究总院有限公司特殊钢研究院, 北京 100089

收稿日期:2022-10-08 修回日期:2023-01-12 出版日期:2023-03-25 发布日期:2023-04-25
通讯作者: 卢德宏,教授,博士,E-mail: ldhongkust@126.com。
作者简介:刘再西(1995—),男,硕士研究生,主要研究方向为马氏体钢热处理,E-mail:962314414@qq.com。

Process optimization and microstructure of C250 maraging steel prepared by SLM process

Liu Zaixi^1,2, Lu Dehong¹, Wang Changjun², Liu Yu²

1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming Yunnan 650032, China;
2. Special Steel Research Institute, Central Iron and Steel Research Institute, Beijing 100089, China

Received:2022-10-08 Revised:2023-01-12 Online:2023-03-25 Published:2023-04-25

摘要/Abstract

摘要： 采用SLM工艺制备C250马氏体时效钢,并通过金相显微镜(OM)、X射线衍射(XRD)、扫描电镜(SEM)、能谱仪(EDS)、电子背散射衍射(EBSD)、透射电镜(TEM)、密度测量仪等,探究SLM工艺参数对C250马氏体时效钢致密度与组织的影响,并对优化SLM工艺制备所得C250马氏体时效钢的形貌与显微组织进行分析。结果表明,当能量密度处于85~120 J/mm³时,试验钢致密度高于99.5%,组织致密无明显缺陷。当激光功率270 W、扫描速率700 mm/s、扫描间距0.11 mm、铺粉层厚0.03 mm时,致密度可达100%。最优SLM工艺下C250钢的主要相成分为马氏体,可达到97.13%,其内部晶粒极其细小,约为2.7 μm,基体内部存在强化相和位错,对C250钢起强化作用。

关键词: 马氏体时效钢, 选区激光熔化, 致密度, 金属凝固

Abstract: C250 maraging steel was prepared by SLM process. Effect of SLM process parameters on relative density and microstructure of the C250 maraging steel by means of metallographic microscopes (OM), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), electron backscattered diffraction (EBSD), transmission electron microscopy (TEM) and density measurement devices. Morphology and microstructure of the C250 maraging steel prepared by optimizing SLM process were analyzed. The results show that when the energy density is 85-120 J/mm³, relative density is higher than 99.5%, and the microstructure is dense without obvious defects. When the laser power is 270 W, the scanning rate is 700 mm/s, the scanning spacing is 0.11 mm, and the powder layer thickness is 0.03 mm, the density of the C250 maraging steel reaches 100%. Under the optimal SLM process, main phase composition of the C250 steel is martensite, which reaches 97.13%, and its internal grains are extremely fine, about 2.7 μm. In the martensite matrix there are also strengthening phases and dislocations to strengthen the C250 steel.

Key words: maraging steel, selective laser melting, relative density, solidification of metal

中图分类号:

TG142.7

刘再西, 卢德宏, 王长军, 刘雨. 基于SLM工艺制备的C250马氏体时效钢的工艺优化及其组织[J]. 金属热处理, 2023, 48(3): 143-150.

Liu Zaixi, Lu Dehong, Wang Changjun, Liu Yu. Process optimization and microstructure of C250 maraging steel prepared by SLM process[J]. Heat Treatment of Metals, 2023, 48(3): 143-150.

参考文献

[1]Gu D, Shi X, Poprawe R, et al. Material-structure-performance integrated laser-metal additive manufacturing[J]. Science, 2021, 372(6545): 1487.
[2]Liu G, Zhang X, Chen X, et al. Additive manufacturing of structural materials[J]. Materials Science and Engineering R: Reports, 2021, 145: 100596.
[3]谭超林, 周克崧, 马文有, 等. 激光增材制造成型马氏体时效钢研究进展[J]. 金属学报, 2020, 56(1): 36-52.
Tan Chaolin, Zhou Kesong, Ma Wenyou, et al. Research progress of laser additive manufacturing of maraging steels[J]. Acta Metallurgica Sinica, 2020, 56(1): 36-52.
[4]时雨, 卫广智, 赵飞. 18Ni(1700 MPa)型马氏体时效钢时效工艺研究[J]. 兵器材料科学与工程, 2013, 36(3): 89-91.
Shi Yu, Wei Guangzhi, Zhao Fei. Aging process of 18Ni(1700 MPa) maraging steel[J]. Ordnance Material Science and Engineering, 2013, 36(3): 89-91.
[5]康凯. 选区激光成形用18Ni-300粉末特性及成形件组织结构的研究[D]. 重庆: 重庆大学, 2014.
[6]Cyr E, Lloyd A, Mohammadi M. Tension-compression asymmetry of additively manufactured maraging steel[J]. Journal of Manufacturing Processes, 2018, 35: 289-294.
[7]韩顺, 王春旭, 厉勇, 等. 锻比对18Ni(250)马氏体时效钢组织及性能的影响 [J]. 锻压技术, 2020, 45(10): 192-197.
Han Shun, Wang Chunxu, Li Yong, et al. Effect of forging ratio on microstructure and properties of 18Ni(250)maraging steel [J]. Forging & Stamping Technology, 2020, 45(10): 192-197.
[8]Mutua J, Nakata S, Onda T, et al. Optimization of selective laser melting parameters and influence of post heat treatment on microstructure and mechanical properties of maraging steel[J]. Materials and Design, 2018, 139: 486-497.
[9]Contuzzi N, Campanelli S L, Casavola C, et al. Manufacturing and characterization of 18Ni marage 300 lattice components by selective laser melting[J]. Materials, 2013, 6(8): 3451-3468.
[10]Król M, Snopiński P, Hajnyš J, et al. Selective laser melting of 18Ni-300 maraging steel[J]. Materials, 2020, 13(19): 4268.
[11]Greco S, Gutzeit K, Hotz H, et al. Selective laser melting (SLM) of AISI 316L-impact of laser power, layer thickness, and hatch spacing on roughness, density, and microhardness at constant input energy density[J]. The International Journal of Advanced Manufacturing Technology, 2020, 108(5): 1551-1562.
[12]Saedi S, Moghaddam N S, Amerinatanzi A, et al. On the effects of selective laser melting process parameters on microstructure and thermomechanical response of Ni-rich NiTi[J]. Acta Materialia, 2018, 144: 552-560.
[13]Bai Y C, Yang Y Q, Wang D, et al. Influence mechanism of parameters process and mechanical properties evolution mechanism of maraging steel 300 by selective laser melting[J]. Materials Science and Engineering A, 2017, 703: 116-123.
[14]Na T W, Kim W R, Yang S M, et al. Effect of laser power on oxygen and nitrogen concentration of commercially pure titanium manufactured by selective laser melting [J]. Materials Characterization, 2018, 143: 110-117.
[15]Karliński, W, Tacikowski J, Wojtyra K. Fatigue strength of nitrided 18Ni250 and 18Ni300 grade maraging steels[J]. Surface Engineering, 1999, 15(6): 483-489.
[16]Yang X, Gao F, Tang F, et al. Effect of surface oxides on the melting and solidification of 316L stainless steel powder for additive manufacturing[J]. Metallurgical and Materials Transactions A, 2021, 52(10): 4518-4532.
[17]Wang D, Wu S, Fu F, et al. Mechanisms and characteristics of spatter generation in SLM processing and its effect on the properties[J]. Materials and Design, 2017, 117: 121-130.
[18]Hozoorbakhsh A, Ismail M I S, Aziz N B A. A computational analysis of heat transfer and fluid flow in high-speed scanning of laser micro-welding[J]. International Communications in Heat and Mass Transfer, 2015, 68: 178-187.
[19]Seikh A H, Halfa H, Baig M, et al. Microstructure characterization and corrosion resistance behavior of new cobalt-free maraging steel produced through ESR techniques[J]. Journal of Materials Engineering and Performance, 2017, 26(4): 1589-1597.

基于SLM工艺制备的C250马氏体时效钢的工艺优化及其组织

Process optimization and microstructure of C250 maraging steel prepared by SLM process

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