理化检验-物理分册2016，Vol.52Issue(2)：95-98,111,5.DOI:10.11973/lhjy-wl201602005
9Cr18合金的燃气热腐蚀行为
Gas Hot Corrosion Behaviors of 9Cr18 Alloy
霍世军 1孙博 2苏敬3
作者信息
- 1. 中航工业西安航空发动机(集团)有限公司 工艺技术中心,西安 710021
- 2. 中航工业西安航空发动机(集团)有限公司 材料检测研究中心,西安 710021
- 3. 西北工业大学 电子信息学院,西安 710068
- 折叠
摘要
Abstract
The gas hot corrosion behaviors of 9Cr18 alloy in high-temperature gas were studied by hot gas corrosion test and SEM observing.The results show that the gas hot corrosion products of the alloy could be divided into two layers,and there were large cracks between the two layers.The outside layer contained more chromium oxide and transversal cracks,and the internal layer contained less chromium oxide and was loose and porous.Sulfur compounds were found on the alloy surface and grain boundaries,and the alloy had an obvious tendency to intergranular corrosion.The corrosion mass gain per unit surface area and corrosion rate were rather fast in the early stage,and then tended to be slow and steady.关键词
9Cr18合金/燃气热腐蚀/腐蚀产物/晶间腐蚀/腐蚀增重/腐蚀速率Key words
9Cr18 alloy/gas hot corrosion/corrosive product/intergranular corrosion/corrosion mass gain/corrosion rate分类
矿业与冶金引用本文复制引用
霍世军,孙博,苏敬..9Cr18合金的燃气热腐蚀行为[J].理化检验-物理分册,2016,52(2):95-98,111,5.
