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ODS MA754合金传热界面接触热阻实验研究
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作者 杨万奎 郭啸宇 +6 位作者 曾和荣 郭玉川 唐彬 王冠博 严睿豪 孟兆明 郭斯茂 《西安交通大学学报》 EI CAS CSCD 北大核心 2024年第2期100-108,共9页
鉴于ODS MA754合金传热界面的接触热阻参数对全固态堆芯空间反应堆系统的热量导出具有重要影响,研发和设计了高温高压接触热阻实验装置,测量了不同温度(20~800℃)、压力(0~80 MPa)、气体氛围(He、CO_(2))以及试件表面粗糙度(1.6、3.2μm... 鉴于ODS MA754合金传热界面的接触热阻参数对全固态堆芯空间反应堆系统的热量导出具有重要影响,研发和设计了高温高压接触热阻实验装置,测量了不同温度(20~800℃)、压力(0~80 MPa)、气体氛围(He、CO_(2))以及试件表面粗糙度(1.6、3.2μm)下ODS MA754合金传热界面的接触热阻,并基于测试获得的宽量程数据点,建立了ODS MA754合金的接触热阻数据库。实验结果表明:随着接触面温度和压力的升高,界面接触热阻降低,且热阻降低的速率逐渐减小;相较于表面粗糙度为1.6μm的试件,粗糙度为3.2μm试件表面的界面接触热阻明显偏大,实验得到的定量关系可为工程样件的加工粗糙度要求提供依据;He气氛下的接触热阻远小于CO_(2)气氛,在0.1 MPa、100℃工况下,He气氛接触热阻约为CO_(2)气氛接触热阻的1/4。该研究结果可为空间反应堆的热工设计提供数据参考。 展开更多
关键词 空间反应堆 ODS ma754合金 接触热阻 高温高压 表面粗糙度
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NICKEL-BASE ALLOY SHEET ALLOYS USED IN AEROSPACE APPLICATIONS 被引量:1
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作者 J.H. Tundermann(Inco Alloys International,Inc.,Huntington,WV 25705,USA ) 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1996年第6期423-432,共10页
Many gas turbine components are made from nickel alloy sheet. Most are used for directing or containing gases at high temperatures and pressures where metal temperatures can be as high as 1090℃ (2000°F). These a... Many gas turbine components are made from nickel alloy sheet. Most are used for directing or containing gases at high temperatures and pressures where metal temperatures can be as high as 1090℃ (2000°F). These applications included combustor systems, casings and liners, transition and exhaust ducting, afterburners, and thrust reversere. Light weight components and sub-assemblies call for alloy sheet with high levels of stength and oxidation resistance. Complex component design calls for excellent ductility and ease of fabrication.The wide range of nickel alloy sheet alloys presently used in aircraft and land-based gas turbines is briefly described and typical properties presented. New sheet alloy developments, involving INCONEL ̄* alloys 625LCF, 718SPF and MA754, are presented including the process routes involved and material properties. 展开更多
关键词 aerospace sheet products nickel-base alloys INCONEL alloy 625LCF INCONEL alloy 718SPF INCONEL alloy ma754 low cycle fatigue superplastic forming oxide dispersion strengthened
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