Boron-carburizing process of 1Cr13 stainless steel and its properties

doi:10.13251/j.issn.0254-6051.2021.06.025

Abstract

Abstract: Pre-carburizing at 950 ℃ for 6 h and different boronizing processes for martensitic stainless steel 1Cr13 were carried out. Effects of composite infiltration process and final heat treatment on microstructure and properties of boron-carburized layer were studied by means of optical(OM), scanning electron microscope(SEM), energy spectrum analysis(EDS), microscopic Vickers hardness tester, XRD, electrochemical workstation. The results show that the optimum boron-carburizing process of 1Cr13 steel is carburizing at 950 ℃ for 6 h then boronizing at 950 ℃ for 6 h. Under this process, the surface hardness of boron-carburized layer is up to 1436 HV0.1, the hardness of the interface layer is 924 HV0.1. Pre-carburized layer hardness is 630-910 HV0.1 and the core hardness is 560-590.7 HV0.1. The hardness gradient of composite infiltration layer is relatively gentle on the whole. EDS results show that the interface layer have the highest Cr content, and it's mass fraction is 13.49%. XRD results show that the boronized layer is mainly Fe₂B phase with high hardness and low brittleness, and there are a few FeB and CrB phases. The corrosion potential of the boron-carburized specimen is increased by 0.104 V compared with the original specimen, and the corrosion resistance of the steel is improved by the boron-carburizing process.

Key words: 1Cr13 stainless steel, boron-carburizing process, microstructure, microhardness

CLC Number:

TG156.8

Su Xuehu. Boron-carburizing process of 1Cr13 stainless steel and its properties[J]. Heat Treatment of Metals, 2021, 46(6): 120-125.

References

[1]Dalmau A, Richard C, Igual-Muñoz A. Degradation mechanisms in martensitic stainless steels: Wear, corrosion and tribocorrosion appraisal[J]. Tribology International, 2018, 121: 167-179.
[2]Lo K H, Shek C H, Lai J K L. Recent developments in stainless steels[J]. Materials Science and Engineering R: Reports, 2009, 65(4-6): 39-104.
[3]Angelini V, Boromei I, Martini C, et al. Dry sliding behavior (block-on-ring tests) of AISI 420 martensitic stainless steel, surface hardened by low temperature plasma-assisted carburizing[J]. Tribology International, 2016, 103: 555-565.
[4]刘伟东, 张旭, 屈华. FeB和Fe₂B价电子结构与钢表面渗硼层硬化本质[J]. 材料导报, 2018, 32(4): 672-675.
Liu Weidong, Zhang Xu, Qu Hua. Valence electron structures of FeB and Fe₂B and the hardening essence of boronizing layer of steel surface[J]. Materials Review A: Review Papers, 2018, 32(4): 672-675.
[5]杨凯军, 朱世杰, 阎满刚. 4Cr13不锈钢渗硼工艺及渗层组织和性能的研究[J]. 热加工工艺, 2004(7): 25-26.
Yang Kaijun, Zhu Shijie, Yan Mangang. Boride layer and boronizing process parameters of 4Cr13 stainless steel[J]. Hot Working Technology, 2004(7): 25-26.
[6]Taktak Sukru. Tribological behaviour of borided bearing steels at elevated temperatures[J]. Surface and Coatings Technology, 2006, 201(6): 2230-2239.
[7]马壮, 李玲, 王斯琦, 等. 渗硼层后处理研究现状[J]. 金属热处理, 2017, 42(8): 146-151.
Ma Zhuang, Li Ling, Wang Siqi, et al. Research status of post-treatment of boronized layer[J]. Heat Treatment of Metals, 2017, 42(8): 146-151.
[8]张拯, 林万明, 钱玉水. 马氏体不锈钢腐蚀性能的研究[J]. 铸造设备与工艺, 2012(6): 11-13.
Zhang Zheng, Lin Wanming, Qian Yushui. Research on corrosion properties of martensitic stainless steel[J]. Foundry Equipment and Technology, 2012(6): 11-13.
[9]赵烈. 硼、碳共渗及复合渗的组织与性能研究[D]. 杭州: 浙江大学, 1989.
Zhao Lie. Microstructure and properties of boron, carburizing and compound carburizing[D]. Hangzhou: Zhejiang University, 1989.

[1]	Wang Yudai, Liu Yang, Zhu Yanyan, Tian Xiangjun, Cheng Xu, Ran Xianzhe, Qian Tingting. Effect of heat treatment on microstructure homogeneity and tensile properties of hybrid fabricated AerMet100 ultra-high strength steel [J]. Heat Treatment of Metals, 2022, 47(4): 1-9.
[2]	Zhang Ziyan, Chen Jun, Chen Xiaoya, Li Quan'an, Liu Jianxin. Effect of solution and aging treatment on microstructure and corrosion resistance of Mg-4Sm-3Gd-0.5Zr alloy [J]. Heat Treatment of Metals, 2022, 47(4): 10-16.
[3]	Liang Enpu, Xu Le, Yang Yong, Wang Maoqiu. Effects of Al and Cu additions on microstructure and mechanical properties of 40CrNi3MoV steel [J]. Heat Treatment of Metals, 2022, 47(4): 17-23.
[4]	Qi Xiaoliang, Li Yan, Ding Wei, Zhao Zengwu. Effect of original microstructure of medium manganese TRIP steel containing Al on microstructure and mechanical properties after intercritical annealing [J]. Heat Treatment of Metals, 2022, 47(4): 24-29.
[5]	Chen Baoan, Zhang Jingyuan, Zhu Zhixiang, Han Yu, Pan Xuedong, Zhang Lei, Chen Suhong. Effect of chemical composition on microstructure and properties of high strength Al-Mg-Si alloy [J]. Heat Treatment of Metals, 2022, 47(4): 30-38.
[6]	Chen Dongjun, Li Guangyang, Liu Gang. Effect of aging treatment on microstructure and mechanical properties of AlSi9Cu3 HPDC aluminum alloy [J]. Heat Treatment of Metals, 2022, 47(4): 53-56.
[7]	Chen Liansheng, Zhang Luyou, Tian Yaqiang, Yang Zixuan, Li Hongbin, Pan Hongbo, Wei Yingli. CCT curves and microstructure and properties of low-carbon high strength marine steel [J]. Heat Treatment of Metals, 2022, 47(4): 63-68.
[8]	Jia Changyuan, Huo Yuanming, He Tao, Huo Cunlong, Liu Keran. High temperature tensile deformation behavior and microstructure evolution law of 40CrNiMo steel [J]. Heat Treatment of Metals, 2022, 47(4): 69-74.
[9]	Wang Yunlong, Yu Wei, Zhang Yi, Shi Jiaxin, Li Minghui. Effect of austenitizing temperature on isothermal transformation and mechanical properties of bainite steel [J]. Heat Treatment of Metals, 2022, 47(4): 80-85.
[10]	Liu Liyan, Bi Wenzhen, Wei Xicheng. Effect of Mn element on microstructure evolution of galvanized coating of hot stamping steel [J]. Heat Treatment of Metals, 2022, 47(4): 93-99.
[11]	Fu Xibin, Chen Zihao, Zhang Ke, Zhao Shiyu, Sun Xinjun, Zhu Zhenghai, Liang Xiaokai, Yong Qilong. Effect of quenching temperature on microstructure and mechanical properties of high Ti low alloy wear-resistant steel [J]. Heat Treatment of Metals, 2022, 47(4): 122-127.
[12]	Su Pengji, Ma Yonglin, Dong Lili, Yang Xuefeng. Effect of magnetic field pre-annealing on microstructure and texture of CGO steel [J]. Heat Treatment of Metals, 2022, 47(4): 128-132.
[13]	Li Li, Zeng Yan, Wu Xiaochun. Heat treatment process optimization for 4Cr5Mo2VCo steel [J]. Heat Treatment of Metals, 2022, 47(4): 133-140.
[14]	Lü Jiesheng, Song Zhigang, He Jianguo, Feng Han, Zheng Wenjie, Zhu Yuliang. Microstructure transformation and strengthening-plasticization mechanism of S32205 duplex stainless steel after cold rolling and annealing [J]. Heat Treatment of Metals, 2022, 47(4): 141-145.
[15]	Wang Qi, Wu Guangliang. Effect of tempering temperature on microstructure and properties of 1100 MPa grade high-strength steel [J]. Heat Treatment of Metals, 2022, 47(4): 146-150.