LIFE ASSESSMENT BASED ON OXIDES' DEPOSITION FOR AUSTENITIC STAINLESS STEEL TUBES USED IN ULTRA-SUPERCRITICAL UNITS

DOU Hong1; DAI Yuan1; WANG Wei1; XIONG Yangheng21.Electric Power Science Research Institute under Guangdong Power Grid Corporation

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LIFE ASSESSMENT BASED ON OXIDES' DEPOSITION FOR AUSTENITIC STAINLESS STEEL TUBES USED IN ULTRA-SUPERCRITICAL UNITS

更新时间：2025-09-28

- LIFE ASSESSMENT BASED ON OXIDES' DEPOSITION FOR AUSTENITIC STAINLESS STEEL TUBES USED IN ULTRA-SUPERCRITICAL UNITS
- Thermal Power Generation Vol. 40, Issue 6, Pages: 38-40(2011)
- 作者机构：
  
  1. 广东电网公司电力科学研究院
  2. 武汉大学动力机械学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621.2
- Published：2011
- 稿件说明：
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DOU Hong1, DAI Yuan1, WANG Wei1, et al. LIFE ASSESSMENT BASED ON OXIDES' DEPOSITION FOR AUSTENITIC STAINLESS STEEL TUBES USED IN ULTRA-SUPERCRITICAL UNITS[J]. Thermal power generation, 2011, 40(6): 38-40.
DOI：

DOU Hong1, DAI Yuan1, WANG Wei1, et al. LIFE ASSESSMENT BASED ON OXIDES' DEPOSITION FOR AUSTENITIC STAINLESS STEEL TUBES USED IN ULTRA-SUPERCRITICAL UNITS[J]. Thermal power generation, 2011, 40(6): 38-40. DOI：

摘要

介绍了奥氏体不锈钢氧化皮的结构、形成及剥落机理

研究了奥氏体钢炉管氧化皮剥落形成堵塞后对管壁温度的影响。根据管子的堵塞程度

进行了堵塞程度分级:堵塞管子内径1/8为干净

1/4为少量

3/8需割管

1/2为堵死。提出了基于氧化物堆积的管子寿命评估模型。

Abstract

The structure

formation and flaking mechanism of oxide skin on austenitic steel have been presented

and the influence after flaking of oxide skin from austenitic steel boiler tube and resulting in blockage inside tube upon the temperature of tube-wall being studied

and the extent of blockage in tubes being classified according to the degree of blokage;1/8 blockage in the tube may be considered as clean tube;1/4 blockage in the tube is only in a small amount;3/8 blockage in the tube needing to be cut;1/2 blockage in the tube can be considered as deadly blocked.A tube life assessment model based on oxide film deposition has been put forward.

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