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

doi:10.3390/ma14092241

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Effect of oxygen content on microstructure and tensile properties of a 22cr-5al ods steel
	Zhang, Yukun 2,3; Yan, Yingjie 2,3; Zhai, Yazhong 2,3; Qin, Wei 1; Che, Hongyan 1; Wang, Tiejun 1; Cao, Rui 2,3
刊名	Materials
	2021
卷号	14 期号:9
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
英文摘要	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.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种	英语
出版者	MDPI AG
WOS记录号	WOS:000650547600001
内容类型	期刊论文
源URL	[http://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
作者单位	1.Advanced Technology & Materials Limited Company, China Iron & Steel Research Institute Group, Beijing; 100081, China 2.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Langongping 287 Road, Qilihe District, Lanzhou; 730050, China; 3.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China;
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).