Microstructure Evolution and Lifetime Extension Mechanism of Sn-Added Fe-Based Pre-Alloy Brazing Coating in Diamond Tools
Source abstract
Abstract
The effect of Sn content added in pre-alloy powder on the microstructure, porosity, hardness and bending strength of hot pressing sintering of a diamond matrix was investigated. The results show that with the increase of Sn content in the pre-alloy powder, a reduction in grain size and porosity as well as an increase in hardness is observed. As a result of the reduction in porosity, the flexural strength increases with the increase in the Sn content in the pre-alloy powder. However, with the increase of Sn content, the bending strength decreases owing to the formation of Cu5.6Sn in the matrix. The properties of the diamond matrix are improved, and the lifetime of the diamond matrix is prolonged when the Sn content is 4 wt.%.
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Research context
OpenAlex topics: Advanced materials and composites · Tunneling and Rock Mechanics · Powder Metallurgy Techniques and Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Material Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China
Zhengzhou Research Institute of Mechanical Engineering Co., Ltd., Zhengzhou 450001, China
Funding
Central Plains Scholar Project of Henan Province · Funding of China Postdoctoral Science Foundation Funded Project · Open Project Program of the State Key Laboratory of Advanced Brazing Filler Metals and Technology · Jiangsu Government Scholarship for Overseas Studies
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