摘要
借助于扫描电镜、透射电镜等分析手段,研究了Super304H和TP347H钢管内壁喷丸层的特性,阐明了奥氏体钢管内壁喷丸层的组织组成、形貌特征和微结构。通过空气氧化试验,探讨了喷丸对奥氏体钢管内壁抗氧化性能的影响。结果显示,喷丸层组织由奥氏体和马氏体组成,喷丸可以提高奥氏体钢管抗氧化能力。
The characteristics of internal surface of austenitic stainless steel tube treated by shot blasting were investigated by means of X-ray diffractometry, scanning electron microscope （SEM） and transmission electron microscope （TEM）. The microstructure and appearance of shot-blasted layer were explained and its effects on high temperature oxidation were also investigated by air oxidation test. The results show that the shot-blasted layer consists of austenite and α-martensite. The shot blasting is good for oxidation resistance of austenitic stainless steel.
出处
《锅炉技术》
北大核心
2009年第2期48-51,共4页
Boiler Technology
关键词
奥氏体钢
喷丸层
组织形貌
抗氧化
austenitic stainless steel
shot-blasted layer
structure and appearance
oxidation resistance
