Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing

doi:10.1016/j.matdes.2021.110198

	Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing
	Li, Wensheng 2,3; Li, Jianjun 2; Cheng, Bo 2; Zhang, Xinjian 2; Song, Qiang 3; Wang, Yu 2; Zhang, Tao 2; Seniuts, Uladzimir 1; Belotsrkovsky, Marat 1
刊名	MATERIALS & DESIGN
	2021-12-15
卷号	212
关键词	Magnetic abrasive finishing Carbonyl iron Fe/Al intermetallic core-shell In-situ alloy-hardening Surface roughness
ISSN号	0264-1275
DOI	10.1016/j.matdes.2021.110198
英文摘要	The finishing accuracy and efficiency of magnetic abrasive finishing (MAF) are mainly depending on magnetic abrasive powders (MAPs). A new kind of core-shell structured carbonyl iron powders (CI-MAPs) with a hard Fe/Al intermetallic shell for magnetic abrasive finishing is successfully synthesized by in situ alloy-hardening the surface of spherical carbonyl iron powders in this study. The feasibility of such an in-situ alloy-hardening strategy is theoretically designed according to the Fe/Al intermetallic compound formation chemical reaction using the Gibbs free energy principle and the TG-DSC testing, and thus the experimental thermodynamics temperature and time ranges of such chemical reactions are proposed. Experimental results shown that a densely zigzag-like uniform alloy-hardening layer with a thickness of about 11 mu m, which are composed of Fe3Al, FeAl, and Fe2Al5 intermetallic compounds, was in-situ chemically synthesized on the surface of the spherical carbonyl Fe powders. The achieved core-shell structured powder is performed to finishing a Zirconium tube experimentally, and the roughness (Ra) of the Zirconium tube is greatly improved from 0.361 mu m to 0.085 mu m by 3 MAF passes. (C) 2021 The Authors. Published by Elsevier Ltd.
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000720567400002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154941]
专题	材料科学与工程学院能源与动力工程学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Natl Acad Sci Belarus, Joint Inst Mech Engn, Minsk 220072, BELARUS 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China; 3.Shandong Univ Sci & Technol, Sch Mat Sci & Engn, Qingdao 266590, Shandong, Peoples R China;
推荐引用方式 GB/T 7714	Li, Wensheng,Li, Jianjun,Cheng, Bo,et al. Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing[J]. MATERIALS & DESIGN,2021,212.
APA	Li, Wensheng.,Li, Jianjun.,Cheng, Bo.,Zhang, Xinjian.,Song, Qiang.,...&Belotsrkovsky, Marat.(2021).Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing.MATERIALS & DESIGN,212.
MLA	Li, Wensheng,et al."Achieving in-situ alloy-hardening core-shell structured carbonyl iron powders for magnetic abrasive finishing".MATERIALS & DESIGN 212(2021).