Effect of processing way and aging treatment on properties and microstructures of 7B04 aluminum alloy

来源期刊：中国有色金属学报(英文版)2008年第3期

论文作者：李念奎 吕新宇 崔建忠

文章页码：541 - 547

Key words：7B04 aluminum alloy; processing way; aging; microstructure; exfoliation corrosion; stress corrosion

Abstract: The influence of forging and aging treatment on mechanical properties and microstructure of large size prestretched thick plate of 7B04 aluminium alloy was investigated through tensile test, corrosion test, transmission electronic microcopy(TEM) and energy dispersive spectrum(EDS) analysis. The results show that the properties of plate performed extra forging (FSR technology) are much higher than those of plate without forging (CSR technology). T7451 temper is preferred to resisting corrosion than T651 temper due to a wide PFZ and discontinuous grain boundary precipitates.

基金信息：the Commission of Science Technology and Industry for National Defence, China