Microstructural observation and tensile properties of ODS-304 austenitic steel
ODS-304 austenitic steel (pre-alloyed austenitic powders+0.35 wt.％ Y2O3+0.5 wt.％ Ti) wasfabricated by the process of MA and HIP. Forging was applied to samples for improving ductilityfurther. Microstructures of both MA powders and compacted samples were characterized by XRD,SEM and TEM. Tensile properties were tested at room temperature and 700 . Fine oxide part℃ iclesenriched in Y-Ti-O or Y-Si-O were observed. At 23 ℃, UTS and elongation of the HIPed samplereached 940 MPa and 24.5％ respectively. Samples showed much better ductile performance afterforging while there was little decrease of strength properties at the same time.
Man Wang Zhangjian Zhou Helong Hu Hongying Sun Shaofu Li
School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China
国际会议
3rd China-Canada Joint Workshop on Supercritical Water-Cooled Reactors(第三届中国-加拿大超临界水堆研讨会 (CCSC-2012)
西安
英文
1-9
2012-04-18（万方平台首次上网日期，不代表论文的发表时间）