钢管2025，Vol.54Issue(4)：25-30,6.DOI:10.19938/j.steelpipe.1001-2311.2025.4.25.30
高铬奥氏体耐热钢管内壁喷丸处理对抗蒸汽氧化性能的影响
Influence by Inner Wall Shot Blast Process on Steam Oxidation Resistance of High-Cr Austenitic Heat-resistant Steel Tube
何思凡 1杨首恩 1刘光明 2曾凡伟 1谢逍原1
作者信息
- 1. 东方电气集团东方锅炉股份有限公司,四川成都 611731||机械工业高温、高压材料与焊接工程实验室,四川自贡 643001
- 2. 南昌航空大学,江西南昌 330063
- 折叠
摘要
Abstract
In order to investigate the influence by the inner surface shot blasting process on steam oxidation resistance of the hi-chromium austenitic heat-resistant steel tube,three types of the high chromium austenitic heat-resistant steel tu-be,i.e.,S31035,SP2215 and TP310HCbN are subjected to high-temperature steam oxidation experiments at 665℃ for a maximum of 3 000 h in both non-shot blasted and shot blasted states.The evolution law of the oxide layer structure is systematically studied by means of oxidation film thickness measurement,the X-ray diffraction,scanning electron micro-scopy and energy dispersive spectroscopy,and based on the oxidation kinetics curve,the 100 000 h corrosion data are extrapolated.As a result,the facts as follows are revealed.The shot blasting treatment can not obviously increase the steam oxidation resistance of the pipe,and in the above mentioned two states,the oxide film growth rate is close to the object composition;and from an engineering perspective,both the shot-blasted and the non-shot blasted specimens of the said three tubes are in compliance with the corrosion allowance as required under applicable specification.Accordingly it is recommended to cancel the shot blasting treatment for the said three types of tubes so as to reduce the production cost.关键词
高铬奥氏体耐热钢/内壁喷丸/蒸汽氧化/氧化动力学/腐蚀裕量Key words
high chromium austenitic heat-resistant steel/inner surface shot blasting/steam oxidation/oxidation kinetics/corrosion allowance引用本文复制引用
何思凡,杨首恩,刘光明,曾凡伟,谢逍原..高铬奥氏体耐热钢管内壁喷丸处理对抗蒸汽氧化性能的影响[J].钢管,2025,54(4):25-30,6.
