表面粗糙度对2024铝合金扩散结合的影响

Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2022-08-01 DOI:10.11159/mmme22.119

Pei-Ing Lee, Shih-Ying Chang, Yu-Kai Sun, T. Chuang

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引用次数: 0

摘要

研究了2024铝合金在不同表面粗糙度下的界面组织和抗剪强度。结果表明，在490°C、5 MPa压力下、120 min条件下电抛光后的试样，其抗剪强度达到79.7 MPa，比MIL-STD-883G规范要求的最低抗剪强度7.9 MPa高出约10倍。剪切强度随粘接温度从440℃增加到490℃，粘接时间从30 min增加到240 min而增加。

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Effects of Surface Roughness on the Diffusion Bonding of 2024 Aluminum Alloy

- The interfacial microstructure and shear strength properties of solid-state diffusion bonded 2024 aluminium alloy were investigated under varied surface roughness. The results indicated a high strength of 79.7 MPa for specimens electro-polished after diffusion bonding at 490°C for 120 min under pressure of 5 MPa, approximately 10 times above the minimally required shear strength of 7.9 MPa of the MIL-STD-883G specification. It was also found that the shear strength increased with increases in bonding temperature from 440°C to 490°C and bonding time from 30 to 240 min.

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Proceedings of the 8th World Congress on Mechanical, Chemical, and Material Engineering

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