Abstract
放射性同位素电池用铱合金包壳材料的研究进展
Research Progress of Iridium Alloy Cladding Materials for Radioisotope Thermoelectric Generator
Received:July 23, 2019  
DOI:
中文关键词: 放射性同位素电池(RTG)  包壳材料  铱合金  掺杂机制  加工工艺
英文关键词: radioisotope thermoelectric generator(RTG)  cladding material  iridium alloy  doping mechanism  processing technology
基金项目:国家自然科学基金(51501075)、云南省院所技术开发专项(2014DC018)
Author NameAffiliationE-mail
XIE Yong Kunming Institute of Precious Metals, State Key Laboratory of Advance Technologies for ComprehensiveUtilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China 1367306776@qq.com 
LIU Yi Kunming Institute of Precious Metals, State Key Laboratory of Advance Technologies for ComprehensiveUtilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China liuyi@ipm.com.cn 
ZHANG Jiankang Kunming Institute of Precious Metals, State Key Laboratory of Advance Technologies for ComprehensiveUtilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China  
LUO Ximing Kunming Institute of Precious Metals, State Key Laboratory of Advance Technologies for ComprehensiveUtilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China  
WANG Chunqin Kunming Institute of Precious Metals, State Key Laboratory of Advance Technologies for ComprehensiveUtilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China  
LI Qiang Kunming Institute of Precious Metals, State Key Laboratory of Advance Technologies for ComprehensiveUtilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China  
ZHANG Guoquan Kunming Institute of Precious Metals, State Key Laboratory of Advance Technologies for ComprehensiveUtilization of Platinum Metals, Sino-Platinum Metals Co. Ltd., Kunming 650106, China  
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中文摘要:
      放射性同位素电池(RTG)对包壳材料的高温抗氧化性能有特别的要求,百瓦级以下的包壳材料可以使用Pt-30Rh合金,百瓦级以上的包壳材料需使用工作温度更高的铱合金。本文对铱合金包壳材料中掺杂钨、钍和铝等元素对金相组织结构、高温耐腐蚀性能和加工性能的影响,概述了高频感应熔炼、电子束熔炼和真空电弧熔炼等加工工艺的发展。
英文摘要:
      Radioisotope Thermoelectric Generators (RTG) have special requirements for the high temperature oxidation resistance of cladding materials. Pt-30Rh alloy can be used for cladding materials below 100 watts, while iridium alloys with higher operating temperatures must be used for cladding materials above 100 watts. The effects of doping tungsten, thorium, and aluminum on the metallographic structure, high temperature corrosion resistance, and processability of iridium alloy cladding materials are discussed in this paper. The development of high-frequency induction melting, electron beam melting and vacuum arc melting are summarized.
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