固溶+时效处理对粉末冶金Ti-22Al-25Nb合金显微硬度的影响
贾建波1,鹿超1,杨志刚1,董添添1,顾勇飞1,徐岩1,2(
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Effect of Solution- and Aging-treatment on Microstructure and Microhardness of a Powder Metallurgy Ti-22Al-25Nb Alloy
JIA Jianbo1,LU Chao1,YANG Zhigang1,DONG Tiantian1,GU Yongfei1,XU Yan1,2()
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图2. 热处理前合金的原始组织
Fig.2. SEM micrographs of the original microstructure of the alloy before heat treatment (a) low magnification and (b) high magnification
