I&Q&P工艺对高硼铁基耐磨合金组织和性能的影响

doi:10.13251/j.issn.0254-6051.2020.07.001

金属热处理 ›› 2020, Vol. 45 ›› Issue (7): 1-6.DOI: 10.13251/j.issn.0254-6051.2020.07.001

• 工艺研究 • 下一篇

I&Q&P工艺对高硼铁基耐磨合金组织和性能的影响

王凯¹, 吴志方¹, 吴润², 李明伟²

1. 武汉科技大学钢铁冶金新工艺湖北省重点实验室, 湖北武汉 430081;
2. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室, 湖北武汉 430081

收稿日期:2020-01-12 出版日期:2020-07-25 发布日期:2020-09-07
通讯作者: 吴志方, 副教授, 博士, E-mail:wuzhifang@wust.edu.cn
作者简介:王凯(1995—), 男, 硕士研究生, 主要研究方向为耐磨合金, E-mail:1554709176@qq.com。
基金资助:
国家自然科学基金(51771139)

Effect of I&Q&P process on microstructure and properties of high-boron iron-based wear-resistant alloy

Wang Kai¹, Wu Zhifang¹, Wu Run², Li Mingwei²

1. Hubei Provincial Key Laboratory for New Processes of Ironmaking and Steelmaking, Wuhan University of Science and Technology, Wuhan Hubei 430081, China;
2. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan Hubei 430081, China

Received:2020-01-12 Online:2020-07-25 Published:2020-09-07

摘要/Abstract

摘要： 借助光学显微镜(OM)、扫描电镜(SEM)、X射线衍射分析仪(XRD)和洛氏硬度计等,研究了I&Q&P工艺对高硼铁基耐磨合金组织和性能的影响。结果表明,高硼铁基合金的铸态组织由铁素体、马氏体、残留奥氏体和共晶硼化物组成,硼化物主要为Fe₂B和Fe₂₃(B,C)₆。经I&Q&P工艺处理后,合金中残留奥氏体的体积分数从10.0%上升到16.8%,冲击吸收能量从3.76 J增加到6.80 J,硬度值从59.3 HRC下降至54.0 HRC,并生成了新的硼化物Fe₃(B,C)。同时,合金的耐磨性也有了明显的提高。

关键词: 高硼铁基耐磨合金, 铸态组织, I&, Q&, P工艺, 残留奥氏体, 耐磨性

Abstract: Effect of I&Q&P process on the microstructure and properties of high-boron iron-based wear-resistant alloys was studied by means of optical microscope(OM), scanning electron microscope(SEM), X-ray diffraction(XRD) and rockwell hardness tester. The results show that the as-cast microstructure of the high-boron iron-based alloys consists of ferrite, martensite, retained austenite and eutectic boride. The boride is mainly Fe₂B and Fe₂₃(B,C)₆. After treated by I&Q&P process, the volume fraction of retained austenite in the alloys is increased from 10.0% to 16.8%, the impact absorbed energy of the alloy is increased from 3.76 J to 6.80 J, the hardness value is decreased from 59.3 HRC to 54.0 HRC, and a new boride Fe₃ (B,C) is generated. At the same time, the wear resistance of the alloy is significantly improved.

Key words: high-boron iron-based wear-resistant alloy, as-cast microstructure, I&, Q&, P process, retained austenite, wear resistance

中图分类号:

TG156.1

王凯, 吴志方, 吴润, 李明伟. I&Q&P工艺对高硼铁基耐磨合金组织和性能的影响[J]. 金属热处理, 2020, 45(7): 1-6.

Wang Kai, Wu Zhifang, Wu Run, Li Mingwei. Effect of I&Q&P process on microstructure and properties of high-boron iron-based wear-resistant alloy[J]. Heat Treatment of Metals, 2020, 45(7): 1-6.

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I&Q&P工艺对高硼铁基耐磨合金组织和性能的影响

Effect of I&Q&P process on microstructure and properties of high-boron iron-based wear-resistant alloy

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