中国电机工程学报2011，Vol.31Issue(20)：107-113,7.
新型耐热钢T23的特性与早期失效分析
New Heat-resistant Steel T23's Performance Characteristics and Early Failure
赵慧传 1凌荣华 1贾建民 2赵建仓3
作者信息
- 1. 神华国华(北京)电力研究院有限公司，北京市丰台区100069
- 2. 西安热工研究院有限公司，陕西省西安市710032
- 3. 苏州热工研究院有限公司，江苏省苏州市215004
- 折叠
摘要
Abstract
The T23 steel is based on the T22 steel developed a new type of boiler steel by reducing C and strengthening, it the steel which develops with our country 102 (12Cr2MoWVTiB) has the approximate alloy system and the content, its normal temperature mechanical properties and the high temperature creep fracture intensity surpasses the T22 steel obviously, the cold crack sensitivity is lower than the T22 steel, the heat crack sensitivity is higher than the T22 steel far again, anti-steam oxidation susceptibility and T22 steel quite.But the T23 steel in the application of supercritical boiler superheater tube appears oxide spalling events led to burst pipes, in the application of ultra-supercritical boiler water cooling wall appeared the welding cracks, leaks and so on early failure problems. Based on the T23 steel's mechanical properties, the steam oxidation susceptibility and the welding performance analysis and the breakdown surface scaling, exploded mouth or the fracture metallography analysis, the cause of the malfunction was found out, the improvement suggestion was proposed that, the future ultra (ultra) supercritical boiler design and welding process improvement have reference value.关键词
T23钢；蒸汽氧化；氧化皮剥落；再热裂纹；结构应力；焊接残余应力Key words
T23 steel/ steam oxidation/ falling off of oxide skin/ reheat crack/ structure stress/ welding residual stress分类
信息技术与安全科学引用本文复制引用
赵慧传,凌荣华,贾建民,赵建仓..新型耐热钢T23的特性与早期失效分析[J].中国电机工程学报,2011,31(20):107-113,7.
