Pre-Oxidation Behavior of RE Modified HP40 Alloy

被引:0
|
作者
Yan Jingbo [1 ]
Gao Yimin
Shen Yudi [2 ]
Liang Long
Ye Zhaozhong
Yi Dawei
Du Yingqian
Yao Caiying
机构
[1] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
[2] China Natl Heavy Machinery Res Inst Co Ltd, Xian 710032, Peoples R China
关键词
acoustic-emission; rare earth; HP40; alloys; pre-oxidation; internal oxidation; OXIDATION BEHAVIOR; OXIDE; CARBURIZATION; THICKNESS; CORROSION; ELEMENTS; YTTRIUM; SILICON;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The oxide scale rupture behavior during cooling for the rare-earth modified HP40 alloy with different oxidation time was investigated by the acoustic-emission technology. The results show that the scale adherence is not improved obviously for the RE-modified alloy with 1 h pre-oxidation. However, the binding strength is increased with prolonging the oxidation time due to the internal oxidation caused by rare earth element. BSE experiment indicates the rare earth element facilitates the formation of internal oxide (silica), which changes the rupture behavior of the scale, thus improves the scale adherence.
引用
收藏
页码:491 / 494
页数:4
相关论文
共 18 条