A new 1.9 GPa maraging stainless steel strengthened by multiple precipitating species

IMR OpenIR

	A new 1.9 GPa maraging stainless steel strengthened by multiple precipitating species
	Li, Yongcan; Yan, Wei; Cotton, James D.; Ryan, Glamm J.; Shen, Yifu; Wang, Wei; Shan, Yiyin; Yang, Ke; wangw@imr.ac.cn
	2015
发表期刊	MATERIALS & DESIGN
ISSN	0261-3069
卷号	82 页码:56-63
摘要	A new ultra-high strength maraging stainless steel with composition of 13Cr-13Co-4.5Ni-3.5Mo-0.5Ti (at.%) has been developed. It was demonstrated that the ultimate tensile strength of the steel could reach 1.9 GPa with reasonable ductility. This breakthrough was achieved by a combined strengthening of three different species of precipitates. The evolution of precipitates with respect of size, morphology and chemical composition during aging at 500 degrees C was characterized using atom probe tomography (APT) and transmission electron microscopy (TEM). The precipitates were identified to be eta-phase Ni-3(Ti,AI) phase, Mo-rich R' phase and Cr-rich alpha' phase, developing out of the precursor clusters, Ni-Ti-Al-rich cluster, Mo-rich cluster and Cr-rich cluster, separately. The segregation of Mo and Cr atoms at the precipitate/matrix interfaces was detected and is considered to impede the coarsening of eta-phase. Based on the characterizations, the precipitation process of these phases and their effect on mechanical properties were analyzed. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[li, yongcan ; yan, wei ; wang, wei ; shan, yiyin ; yang, ke] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [li, yongcan ; shen, yifu] nanjing univ aeronaut & astronaut, coll mat sci & technol, nanjing 210016, peoples r china ; [cotton, james d. ; ryan, glamm j.] boeing co, seattle, wa 98108 usa
关键词	Maraging Stainless Steel Atom Probe Tomography Precipitates Strengthening
资助者	Natural Science Foundation of China [51201160]
收录类别	sci
语种	英语
WOS记录号	WOS:000358096700006
引用统计	被引频次：66[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/321006/74590
专题	中国科学院金属研究所
通讯作者	wangw@imr.ac.cn
推荐引用方式 GB/T 7714	Li, Yongcan,Yan, Wei,Cotton, James D.,et al. A new 1.9 GPa maraging stainless steel strengthened by multiple precipitating species[J]. MATERIALS & DESIGN,2015,82:56-63.
APA	Li, Yongcan.,Yan, Wei.,Cotton, James D..,Ryan, Glamm J..,Shen, Yifu.,...&wangw@imr.ac.cn.(2015).A new 1.9 GPa maraging stainless steel strengthened by multiple precipitating species.MATERIALS & DESIGN,82,56-63.
MLA	Li, Yongcan,et al."A new 1.9 GPa maraging stainless steel strengthened by multiple precipitating species".MATERIALS & DESIGN 82(2015):56-63.