Design and preliminary characterization of a novel carbide-free 9Cr-ODS martensitic steel

IMR OpenIR

	Design and preliminary characterization of a novel carbide-free 9Cr-ODS martensitic steel
	Wang, Guangquan; Li, Yanfen; Zhang, Jiarong; Bao, Feiyang; Wei, Yan; Shi, Quanqiang; Shi, Xianbo; Shan, Yiyin; Yang, Ke
	2020-11-01
发表期刊	FUSION ENGINEERING AND DESIGN
卷号	160 页码:11824-11824
摘要	A novel 9Cr-ODS martensitic steel was designed for application in the advanced fusion reactors by reducing carbon content to an extremely low level to avoid the precipitation of M23C6 carbides and increasing manganese content to promote the martensite formation. The preliminary investigation was carried out by means of thermodynamics calculation, phase transformation measurement, microstructural observation and mechanical property testing. The results showed that the desired tempered martensitic structure and elimination of unstable M23C6 around grain/subgrain boundaries were achieved successfully in the fabricated steel with a final composition of Fe-9.25Cr-1.02W-1.05Mn-0.27Y(2)O(3)-0.012C (in wt%). Characterized by a homogeneous distribution of nano-size yttrium oxides with an ultrahigh density, absence of coarse M23C6, fine grains with high density dislocations, the designed 9Cr-ODS steel exhibited a relative good tensile properties after normalization and tempering treatments. Due to the slight decline of austenite temperatures (A(c1) and A(c3)), a tempering temperature higher than 800 degrees C should be avoided.
WOS记录号	CCC:000588143300018
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/155664
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Wang, Guangquan,Li, Yanfen,Zhang, Jiarong,et al. Design and preliminary characterization of a novel carbide-free 9Cr-ODS martensitic steel[J]. FUSION ENGINEERING AND DESIGN,2020,160:11824-11824.
APA	Wang, Guangquan.,Li, Yanfen.,Zhang, Jiarong.,Bao, Feiyang.,Wei, Yan.,...&Yang, Ke.(2020).Design and preliminary characterization of a novel carbide-free 9Cr-ODS martensitic steel.FUSION ENGINEERING AND DESIGN,160,11824-11824.
MLA	Wang, Guangquan,et al."Design and preliminary characterization of a novel carbide-free 9Cr-ODS martensitic steel".FUSION ENGINEERING AND DESIGN 160(2020):11824-11824.