TY - JOUR
T1 - Microstructural evolution of AZ61 magnesium alloy predeformed by ECAE during semisolid isothermal treatment
AU - Jiang, Ju Fu
AU - Lin, Xin
AU - Wang, Ying
AU - Qu, Jian Jun
AU - Luo, Shou Jing
PY - 2012/3
Y1 - 2012/3
N2 - The microstructural evolution of AZ61 magnesium alloy predeformed by equal channel angular extrusion (ECAE) during semisolid isothermal treatment (SSIT) was investigated by means of optical metalloscopy and image analysis equipment. The process involved application of ECAE to as-cast alloy at 310°C to induce strain prior to heating in the semisolid region for different time lengths. The results show that extrusion pass, isothermal temperature and processing route have an influence on microstructural evolution of predeformed AZ61 magnesium alloy during SSIT. With the increase of extrusion pass, the solid particle size is reduced gradually. When isothermal temperature increases from 530°C to 560°C, the average particle size increases from 22 μm to 35 μm. When isothermal temperature is 575°C, the average particle size decreases. The particle size of microstructure of AZ61 magnesium alloy predeformed by ECAE at B C during SSIT is the finest.
AB - The microstructural evolution of AZ61 magnesium alloy predeformed by equal channel angular extrusion (ECAE) during semisolid isothermal treatment (SSIT) was investigated by means of optical metalloscopy and image analysis equipment. The process involved application of ECAE to as-cast alloy at 310°C to induce strain prior to heating in the semisolid region for different time lengths. The results show that extrusion pass, isothermal temperature and processing route have an influence on microstructural evolution of predeformed AZ61 magnesium alloy during SSIT. With the increase of extrusion pass, the solid particle size is reduced gradually. When isothermal temperature increases from 530°C to 560°C, the average particle size increases from 22 μm to 35 μm. When isothermal temperature is 575°C, the average particle size decreases. The particle size of microstructure of AZ61 magnesium alloy predeformed by ECAE at B C during SSIT is the finest.
KW - AZ61 magnesium alloy
KW - equal channel angular extrusion
KW - microstructural evolution
KW - semisolid isothermal treatment
UR - http://www.scopus.com/inward/record.url?scp=84859774163&partnerID=8YFLogxK
U2 - 10.1016/S1003-6326(11)61213-2
DO - 10.1016/S1003-6326(11)61213-2
M3 - 文章
AN - SCOPUS:84859774163
SN - 1003-6326
VL - 22
SP - 555
EP - 563
JO - Transactions of Nonferrous Metals Society of China (English Edition)
JF - Transactions of Nonferrous Metals Society of China (English Edition)
IS - 3
ER -