金属热处理 ›› 2020, Vol. 45 ›› Issue (7): 153-158.DOI: 10.13251/j.issn.0254-6051.2020.07.031

• 材料研究 • 上一篇    下一篇

原位合成(Ti,W)C增强高铬铸铁复合材料的形成过程及三体磨损性能

魏丹1,2, 罗铁钢1, 郑志斌1, 郑开宏1, 王娟1, 龙骏1   

  1. 1. 广东省材料与加工研究所 广东省金属强韧化技术与应用重点实验室, 广东 广州 510650;
    2. 南昌航空大学 材料科学与工程学院, 江西 南昌 330000
  • 收稿日期:2020-01-30 出版日期:2020-07-25 发布日期:2020-09-07
  • 通讯作者: 罗铁钢, 教授级高级工程师, 博士, E-mail:luotiegang@126.com
  • 作者简介:魏丹(1994—), 女, 硕士研究生, 主要研究方向为原位生成法制备硬质相增强钢铁基复合材料, E-mail:Weidansponge@163.com。
  • 基金资助:
    广东省科学院实施创新驱动发展能力建设专项(2018GDASCX-0117);广州市对外科技合作项目(201907010026);广东省科技计划(2018A050506055,2018dr013,2017A070702019)

Forming process and three-body wear properties of in-situ synthesized (Ti,W)C reinforced high chromium cast iron composite

Wei Dan1,2, Luo Tiegang1, Zheng Zhibin1, Zheng Kaihong1, Wang Juan1, Long Jun1   

  1. 1. Guangdong Provincial Key Laboratory for Technology and Application of Metal Toughening, Guangdong Institute of Materials and Processing, Guangzhou Guangdong 510650, China;
    2. School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang Jiangxi 330000, China
  • Received:2020-01-30 Online:2020-07-25 Published:2020-09-07

摘要: 通过原位生成法与铸造法相结合制备(Ti, W)C颗粒增强高铬铸铁复合材料,采用XRD、EDS、SEM等检测方法研究复合材料的反应过程、组织结构及抗三体磨损性能。研究结果表明:增强相(Ti, W)C的反应过程存在反应-融化-析出机制以及反应-固溶机制。(Ti, W)C颗粒与基体的界面为冶金结合。复合材料的抗磨损性能是其基体高铬铸铁的1.4倍,磨损机制为磨粒磨损-粘着磨损。

关键词: (Ti, W)C增强高铬铸铁复合材料, 原位合成, 反应-融化-析出机制, 反应-固溶机制, 三体磨损

Abstract: (Ti,W)C particle reinforced high chromium cast iron composite was prepared by in-situ synthesis and casting method. XRD, EDS, SEM and other detection methods were used to study the reaction process and three-body wear resistance of the composite. The results show that there is a reaction-melting-precipitation mechanism and a reaction-solid solution mechanism in the reaction process of the reinforcing phase (Ti,W)C particles. The interface between the (Ti,W)C particles and the matrix is metallurgical bonding. The wear resistance of the composite is 1.4 times that of the high chromium cast iron, and the wear mechanism is abrasive wear-adhesive wear.

Key words: (Ti, W)C reinforced high chromium cast iron composite, in situ synthesis, reaction-melting-precipitation mechanism, reaction-solid solution mechanism, three-body wear

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