Nb对Fe22Cr5Al3Mo合金显微组织和耐腐蚀性能的影响

钱月,孙蓉蓉,张文怀,姚美意,张金龙,周邦新,仇云龙,杨健,成国光,董建新

Effect of Nb on Microstructure and Corrosion Resistance of Fe22Cr5Al3Mo Alloy

Yue QIAN,Rongrong SUN,Wenhuai ZHANG,Meiyi YAO,Jinlong ZHANG,Bangxin ZHOU,Yunlong QIU,Jian YANG,Guoguang CHENG,Jianxin DONG

表3 Fe22Cr5Al3Mo-xNb合金中几种典型第二相尺寸统计 (nm)

Table 3 Size statistics of the typical SPPs in Fe22Cr5Al3Mo-xNb alloys (nm)

Alloy hcp-Fe2Nb hcp-Cr2Nb fcc-Cr23C6 o-Fe3C fcc-Nb(C, N) 0Nb - - 500~800 200 - 0.5Nb 150~200 About 500 - - About 190 1.0Nb 150~800 500~750 - - About 185 2.0Nb 300~2000 500~800 - - About 170