In situ study of fracture behavior of ultrafine WC–Co cemented carbide

Xingwei Liu; Haibin Wang; Lihua Wang; Chao Hou; Xiaoyan Song; Xuemei Liu; Xiaodong Han

doi:10.1080/21663831.2016.1208300

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In situ study of fracture behavior of ultrafine WC–Co cemented carbide

Original Report | 更新时间：2026-08-19

- In situ study of fracture behavior of ultrafine WC–Co cemented carbide
- In situ study of fracture behavior of ultrafine WC–Co cemented carbide
- 材料研究快报（英文） 2017年5卷第1期页码：55-60
- 作者机构：
  
  1. College of Materials Science and Engineering Key Laboratory of Advanced Functional Materials Education Ministry of China Beijing University of Technology
  2. Institute of Microstructure and Property of Advanced Materials Beijing University of Technology
- 作者简介：
- 基金信息：
- DOI：10.1080/21663831.2016.1208300
  中图分类号：
- 网络首发：2016-07-22，
  
  纸质出版：2017
- 稿件说明：
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Xingwei Liu, Haibin Wang, Lihua Wang, 等. In situ study of fracture behavior of ultrafine WC–Co cemented carbide[J]. 材料研究快报（英文）, 2017,5(1):55-60.

Xingwei Liu, Haibin Wang, Lihua Wang, et al. In situ study of fracture behavior of ultrafine WC–Co cemented carbide[J]. Materials Research Letters, 2017, 5(1): 55-60.
Xingwei Liu, Haibin Wang, Lihua Wang, 等. In situ study of fracture behavior of ultrafine WC–Co cemented carbide[J]. 材料研究快报（英文）, 2017,5(1):55-60. DOI： 10.1080/21663831.2016.1208300.

Xingwei Liu, Haibin Wang, Lihua Wang, et al. In situ study of fracture behavior of ultrafine WC–Co cemented carbide[J]. Materials Research Letters, 2017, 5(1): 55-60. DOI： 10.1080/21663831.2016.1208300.

摘要

Abstract

BSTRACTThe fracture behavior of ultrafine WC–Co cemented carbide was demonstrated by

in situ

tensile tests in a transmission electron microscope. Using two kinds of cemented carbide samples with and without previously introduced microcracks

the process from deformation till fracture was studied. Particularly

the development and interaction of dislocations within Co and WC

as well as the alternation of dislocation motion between the two phases

was demonstrated

and the features of crack propagation in cemented carbide were disclosed. The finding of the dislocation characteristics and its correlation with the fracture behavior proposed the mechanisms of the ultrahigh fracture strength of the cemented carbide.

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相关机构

d Department of Mechanical Engineering City University of Hong Kong

c Department of Materials Science and Engineering University of Hong Kong Hong Kong People's Republic of China

b Center for Advancing Materials Performance from the Nanoscale State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University

a China Nuclear Power Technology Research Institute

e Advanced Materials Research Central Northwest Institute for Nonferrous Metal Research

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