Y_2O_3对Ni-20Cr合金1000℃高温腐蚀行为的影响  

Effect of Y_2O_3 on High-temperature Corrosion Behavior of Ni-20Cr Alloys

作　　者：付广艳[1] 杜伟昆 刘群[1] 苏勇[1] 

机构地区：[1]沈阳化工大学机械工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2016年第2期152-155,183,共5页Journal of Shenyang University of Chemical Technology

摘　　要：研究加入不同含量Y_2O_3的MANi-20Cr合金在1 000℃时的高温氧化行为.研究表明:随着Y_2O_3含量的增加,MANi-20Cr合金晶粒更加细化,抗氧化能力明显增强,并在MANi-20Cr合金表面生成单一的Cr2O3氧化膜,Y_2O_3的加入有效地抑制了合金的内氧化.The high temperature oxidation behavior of three Ni-20Cr alloys containing different Y_2O_3 in air at 1 000 ℃ has been studied. Results showthat the grain-size reduction is reinforced with the increase of the Y_2O_3 content. The internal oxidation is restrained and a continuous Cr_2O_3 scale has been formed on all of the MANi-20Cr alloys. The oxidation resistance of Ni-20 Cr alloys is enhanced in this experiment condition.

关 键 词：Ni-20Cr 机械合金化 Y2O3 高温氧化 

分 类 号：TG172.82[金属学及工艺—金属表面处理]