Study on Laves phase in an advanced heat-resistant steel

IMR OpenIR

	Study on Laves phase in an advanced heat-resistant steel
其他题名	Study on Laves phase in an advanced heat-resistant steel
	Ping HU 1; Wei YAN 1; Wei SHA 2; Wei WANG 1; Zhanli GUO 3; Yiyin SHAN 1; Ke YANG 1
	2009
发表期刊	Frontiers of Materials Science in China
ISSN	1673-7377
卷号	3 期号:4 页码:434-441
摘要	The Laves phase is one of the most significant precipitates in ferritic/martensitic heat-resistant steels.Laves phase precipitates in the creep rupture specimens with different rupture life were studied on a 10 wt.% Cr heat-resistant steel. JMatPro thermodynamic and kinetic calculations were carried out to simulate and predict the precipitation behavior of the Laves phase in the steel at the equilibrium state. The morphologies of the Laves phase developed with creep time were characterized under both scanning electron microscope (SEM) and transmission electron microscope (TEM). Effects of Co on the growth behavior of Laves phase and the corresponding fracture mode were analyzed. It was found that the Laves phase in the steel grew to 200 nm in size after only 1598 h at 600℃,indicating that the addition of Co in the steel could accelerate the growth of Laves phase, and the coalescence of large Laves phase would lead to the brittle intergranular fracture.
其他摘要	The Laves phase is one of the most significant precipitates in ferritic/martensitic heat-resistant steels.Laves phase precipitates in the creep rupture specimens with different rupture life were studied on a 10 wt.% Cr heat-resistant steel. JMatPro thermodynamic and kinetic calculations were carried out to simulate and predict the precipitation behavior of the Laves phase in the steel at the equilibrium state. The morphologies of the Laves phase developed with creep time were characterized under both scanning electron microscope (SEM) and transmission electron microscope (TEM). Effects of Co on the growth behavior of Laves phase and the corresponding fracture mode were analyzed. It was found that the Laves phase in the steel grew to 200 nm in size after only 1598 h at 600℃,indicating that the addition of Co in the steel could accelerate the growth of Laves phase, and the coalescence of large Laves phase would lead to the brittle intergranular fracture.
关键词	heat-resistant steel Laves phase precipitate microstructure creep
收录类别	CSCD
语种	英语
CSCD记录号	CSCD:3797538
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/144833
专题	中国科学院金属研究所
作者单位	1.中国科学院金属研究所 2.皇后大学 3.Sente Software Ltd., Surrey Technology Centre
推荐引用方式 GB/T 7714	Ping HU,Wei YAN,Wei SHA,et al. Study on Laves phase in an advanced heat-resistant steel[J]. Frontiers of Materials Science in China,2009,3(4):434-441.
APA	Ping HU.,Wei YAN.,Wei SHA.,Wei WANG.,Zhanli GUO.,...&Ke YANG.(2009).Study on Laves phase in an advanced heat-resistant steel.Frontiers of Materials Science in China,3(4),434-441.
MLA	Ping HU,et al."Study on Laves phase in an advanced heat-resistant steel".Frontiers of Materials Science in China 3.4(2009):434-441.