CAJ | 학술논문

为详细了解目前超超临界锅炉受热面管大量采用的新型耐热材料Super304H不锈钢的性能，对其开展系列试验，包括不同温度下的短时拉伸试验，不同时效时间下的拉伸试验、室温冲击试验、材料相结构分析、断口扫描电镜分析、高温长期蠕变断裂性能试验，服役炉管的力学性能研究等，得出Super304H耐热钢在模拟服役条件下的性能退化情况和组织结构演变规律。
위상세료해목전초초림계과로수열면관대량채용적신형내열재료Super304H불수강적성능，대기개전계렬시험，포괄불동온도하적단시랍신시험，불동시효시간하적랍신시험、실온충격시험、재료상결구분석、단구소묘전경분석、고온장기연변단렬성능시험，복역로관적역학성능연구등，득출Super304H내열강재모의복역조건하적성능퇴화정황화조직결구연변규률。
In order to learn the performance of new-type Super304H heat-resisting stainless steel widely used in heat surface pipe of ultra-supercritical units, series of test are carried out, including short-time tension test in different temperatures, tension test in different ageing time, shock test in room temperature, phase struc-ture analysis of materials, fracture analysis by scanning electron microscope, high-temperature longtime creep fracture performance test and mechanical property research of in-service furnace tube, etc. The paper concludes performance degradation and structure evolution rule of Super304H heat-resisting steel in simulated service.