Modulation Mechanism of Transition Elements Fe and Mn on the Interface Bonding Performance of Bronze/Diamond Composites

Author:

Wang Jingchao1ORCID,Yu Jianwu1ORCID,Huang Liang12,Luo Hong3,Liu Xiaopan4,Shang Zhentao1

Affiliation:

1. National Engineering Research Center for High-Efficiency Grinding Hunan University Changsha 410082 China

2. School of Mechanical Engineering Hunan University of Technology Zhuzhou 412007 China

3. College of Mechanical and Electrical Engineering Central South University of Forestry and Technology Changsha 410004 China

4. College of Materials Science and Engineering Hunan University Changsha 410082 China

Abstract

The modulation mechanism of iron (Fe) and manganese (Mn) in transition‐metal elements on the interface bonding and mechanical properties of bronze (Cu3Sn)‐based/diamond composites is investigated through first‐principles calculations. Transition‐elements‐doping scenarios are investigated employing six‐layer slab models. It is revealed that the doping of Fe or Mn can make the Cu3Sn/diamond interface more stable, which effectively improves the wettability of the Cu3Sn/diamond interface based on the calculation results and analysis of interface energy, differential charge density model, and density of states. However, co‐doping with both Fe and Mn weakens the wettability of the Cu3Sn/diamond interface. Finally, wettability tests and microstructure characterizations demonstrate that the doping of Fe and Mn represents an effective approach to controlling the interface bonding performance of bronze/diamond composites.

Funder

National Natural Science Foundation of China

Natural Science Foundation of Hunan Province

Publisher

Wiley

Subject

Condensed Matter Physics,General Materials Science

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