反应堆用难熔合金疲劳性能和断裂韧性研究进展

doi:10.19976/j.cnki.43-1448/TF.2026001

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Abstract Refractory alloys possess outstanding high-temperature mechanical properties and radiation resistance, offering broad application prospects in fourth-generation nuclear energy systems. This paper reviews research progress focusing on the effects of processing techniques, alloy composition, and extreme service conditions of the reactor on the fatigue properties and fracture toughness of refractory alloys. It reveals that current research on refractory alloys for reactors has evolved from traditional materials preparation and property characterization to a systematic exploration of the interactions among processing techniques, alloy composition, and service environments. It identifies existing problems in the current research and outlines key future research directions for refractory alloys in reactor applications.

Key words： reactor material refractory alloy fatigue property fracture toughness service condition

Received: 05 January 2026 Published: 07 May 2026

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	CHEN Pengxu
	LIU Xudong
	DOU Yankun
	HE Xinfu

Cite this article:

CHEN Pengxu,LIU Xudong,DOU Yankun, et al. Research progress on fatigue properties and fracture toughness of refractory alloys for reactors[J]. Materials Science and Engineering of Powder Metallurgy, 2026, 31(2): 113-124.

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http://pmbjb.csu.edu.cn/EN/10.19976/j.cnki.43-1448/TF.2026001 OR http://pmbjb.csu.edu.cn/EN/Y2026/V31/I2/113

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