TiC颗粒强化型马氏体耐磨钢的性能研究

梁小凯; 孙新军; 雍岐龙; 康绍光; 朱秀光; 吴建鹏

doi:10.7513/j.issn.1004-7638.2017.01.009

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TiC颗粒强化型马氏体耐磨钢的性能研究

doi: 10.7513/j.issn.1004-7638.2017.01.009

1. 钢铁研究总院, 北京 100081;
2. 中煤张家口煤矿机械有限责任公司, 河北张家口 076250;
3. 江阴兴澄特钢有限公司, 江苏江阴 214400

详细信息

作者简介:
梁小凯(1978-),男,张家口蔚县人,博士,主要从事耐磨钢研究。

中图分类号: TF823,TF76
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- 被引次数: 0
出版历程
- 收稿日期: 2016-11-10

Study on Performance of TiC Particle Reinforced Martensite Wear-resistant Steel

1. Division of Engineering Steels, Central Iron and Steel Research Institute, Beijing 100081, China;
2. Technology Center of China Coal Zhangjiakou Coal Mining Machinory Co., Ltd., Zhangjiakou 076250, Hebei, China;
3. Division of Special Plate of Xingcheng Special Steel Co., Ltd., Jiangyin 214400, Jiangsu, China

摘要

摘要: 采用模铸、连铸两种工艺工业化试制一种TiC颗粒强化型马氏体耐磨钢, 分析了TiC颗粒的析出规律, 对比研究了试验钢与传统马氏体耐磨钢的组织、力学性能及耐磨性能。试验结果表明:凝固速度越大, TiC析出相越细;轧制压缩比越大, 颗粒分布越均匀;TiC颗粒强化马氏体钢强度与传统马氏体钢相当, 韧性有所降低;微米级的TiC可以有效提高材料的磨粒磨损性能, 试验钢磨损失重仅为同等硬度传统马氏体钢的70%;耐磨性能的提高主要是因为在磨粒磨损条件下, 微米级TiC硬质点可以破碎磨砺、钝化尖角、阻断磨痕。
- 颗粒强化型马氏体耐磨钢 /
- 微米级TiC /
- 耐磨性能
Abstract: TiC particle reinforced martensite wear-resistant steels with a hardness of HB450 were fabricated by mold casting and continuous casting processes.The principal of precipitation of TiC in experimental steels was studied.The microstructures and mechanical and wear-resistant properties of obtained steel were analyzed and compared with that of traditional martensite wear-resistant steels.It is found out that a higher solidification rate of continuous casting resulted in finer micron-sized TiC precipitates.In addition,a larger deformation ratio resulted in a more homogeneous distribution of TiC particles. Uniformly distributed micron-sized TiC particles could passivate the tip of the grains and stop scratches,which improved the wear resistant property of steels significantly,and reduced the weight loss to 70% compared with the traditional martensite wear resistant steels.
- particle reinforced martensite wear-resistant steel /
- micron-sized TiC particles /
- wear-resistant properties