【摘 要】
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The service temperature of reduced activation ferrite/martensite steels(RAFM)in fusion reactors is expected to be around 550 ℃,and higher service temperature heat-resistant alloys such as ODS steels i
【机 构】
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School of Materials Science and Engineering,Hefei University of Technology,Hefei,Anhui,230009,China
【出 处】
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第13届中日双边先进能源系统和聚变裂变工程材料会议(CIS-13)
论文部分内容阅读
The service temperature of reduced activation ferrite/martensite steels(RAFM)in fusion reactors is expected to be around 550 ℃,and higher service temperature heat-resistant alloys such as ODS steels is desired and some promising results have been achieved.The superior properties including high hardness,excellent high-temperature strength and good microstructure stability of high entropy alloys with multi-principal elements make it suitable for fusion reactors applications.In this work,high-entropy alloys with BCC structure containing low activation elements Fe,Cr,V,Ti,Mo or W have been fabricated by arc-melting.The evaluation on the microstructure of these alloys showed that alloys have very good microstructural stability at 700 ℃ up to 3000 h.Compressive strength of developed alloys could reach 1300 Mpa at room temperature,and the ductility and strength increased with increasing the temperature up to 800 ℃.The preliminary results indicated that high-entropy alloys could be the promising candidate materials for nuclear applications.
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