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Erschienen in: Rare Metals 7/2017

27.10.2015

Mechanical properties, microstructure and surface quality of Al-1.2Mg-0.6Si-0.2Cu alloy after solution heat treatment

verfasst von: Li-Zhen Yan, Yong-An Zhang, Bai-Qing Xiong, Xi-Wu Li, Zhi-Hui Li, Hong-Wei Liu, Shu-Hui Huang, Gang Zhao

Erschienen in: Rare Metals | Ausgabe 7/2017

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Abstract

The effect of solution heat treatment (SHT) on mechanical properties, microstructure and surface quality of Al-1.2Mg-0.6Si-0.2Cu-0.6Zn alloy was investigated by tensile test, Erichsen test, surface topography, scanning electron microscope (SEM) and electron back-scattered diffraction (EBSD). The results indicate that with the increase in SHT temperature, yield strength and cupping test value (I E) of the sheets increase greatly and reach a peak value, then decrease. Meanwhile, intermetallic compounds dissolve into matrix gradually. The grains grow up as SHT temperature increases, and abnormal grain growth leads to the surface defects after solution-treated above 560 °C. Considering mechanical properties, I E value, residual phases, grain size and surface quality of the sheets, SHT temperature for the alloy should not be higher than 550 °C.

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Metadaten
Titel
Mechanical properties, microstructure and surface quality of Al-1.2Mg-0.6Si-0.2Cu alloy after solution heat treatment
verfasst von
Li-Zhen Yan
Yong-An Zhang
Bai-Qing Xiong
Xi-Wu Li
Zhi-Hui Li
Hong-Wei Liu
Shu-Hui Huang
Gang Zhao
Publikationsdatum
27.10.2015
Verlag
Nonferrous Metals Society of China
Erschienen in
Rare Metals / Ausgabe 7/2017
Print ISSN: 1001-0521
Elektronische ISSN: 1867-7185
DOI
https://doi.org/10.1007/s12598-015-0623-1

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