摘要
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.
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.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2008年第3期541-547,共7页
Transactions of Nonferrous Metals Society of China
基金
Project(2003AA331100) supported by Commission of Science Technology and Industry for National Defence
关键词
铝合金
加工处理
微结构
片状剥落腐蚀
胁强腐蚀
7B04 aluminum alloy
processing way
aging
microstructure
exfoliation corrosion
stress corrosion
