Effect of oxygen content on microstructure and tensile properties of a 22cr-5al ods steel

doi:10.3390/ma14092241

	Effect of oxygen content on microstructure and tensile properties of a 22cr-5al ods steel
	Zhang, Yukun 1,2; Yan, Yingjie1,2 ; Zhai, Yazhong 1,2; Qin, Wei 3; Che, Hongyan 3; Wang, Tiejun 3; Cao, Rui1,2
	2021-05
发表期刊	Materials
卷号	14 期号:9
摘要	The high tensile strength and irradiation resistance of oxide dispersion strengthened (ODS) ferritic steels is attributed to the ultrafine and dispersed oxides within the matrix. The high content of oxygen and yttrium is critical for the formation of dense Y-rich oxides. However, only few studies have reported the effect of oxygen content on the microstructure and mechanical properties of ODS steels. Herein, we employed gas atomization reactive synthesis to prepare pre-alloy powders and then hot isostatic pressing (HIP) to consolidate two 22Cr-5Al ODS steels with different oxygen content. Our results showed Y-rich precipitates at and near grain boundaries of the as-HIPed alloys. Moreover, with the oxygen content increasing from 0.04 to 0.16 wt%, more precipitates precipitated in the as-HIPed alloy, and the ultimate tensile strength of the alloy was improved. However, increasing the oxygen content to 0.16 wt% led to formation of stripe and chain precipitates at and near grain boundaries, which caused a partial intergranular fracture of the as-HIPed alloy. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
关键词	Aluminum coated steel Chromium steel Grain boundaries Hot isostatic pressing Oxygen Textures Effect of oxygen High-tensile strength Intergranular fracture Irradiation resistance Microstructure and mechanical properties Oxide dispersion strengthened ferritic steels Reactive synthesis Ultimate tensile strength
DOI	10.3390/ma14092241
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000650547600001
出版者	MDPI AG
EI入藏号	20212010355923
EI主题词	Tensile strength
EI分类号	541.1 Aluminum ; 804 Chemical Products Generally
来源库	WOS
引用统计	被引频次[WOS]：0 [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/148438
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
通讯作者	Yan, Yingjie
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Langongping 287 Rd, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China; 3.Adv Technol & Mat Ltd Co, China Iron & Steel Res Inst Grp, Beijing 100081, Peoples R China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院
通讯作者单位	省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Yukun,Yan, Yingjie,Zhai, Yazhong,et al. Effect of oxygen content on microstructure and tensile properties of a 22cr-5al ods steel[J]. Materials,2021,14(9).
APA	Zhang, Yukun.,Yan, Yingjie.,Zhai, Yazhong.,Qin, Wei.,Che, Hongyan.,...&Cao, Rui.(2021).Effect of oxygen content on microstructure and tensile properties of a 22cr-5al ods steel.Materials,14(9).
MLA	Zhang, Yukun,et al."Effect of oxygen content on microstructure and tensile properties of a 22cr-5al ods steel".Materials 14.9(2021).