Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron

IMR OpenIR

	Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron
其他题名	Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron
	Cui Junjun 1; Zhang Hongyun 1; Chen Liqing 1; Li Haizhi 3; Tong Weiping 3
	2014
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	27 期号:3 页码:476-482
摘要	An as-cast bainite ductile iron with excellent mechanical properties and wear resistance was fabricated by alloying and centrifugal casting method, and the alloyed chemical composition was optimized by using the thermodynamic software Thermo-Calc. By using optical microscopy, transmission electron microscopy, scanning electron microscopy, and X-ray diffraction, the microstructure of the as-fabricated bainite ductile cast iron was characterized pertinent to the elements distribution in matrix and features of ferrite and retained austenite. The results of mechanical properties test show that the hardness and compressive strength of this alloyed ductile iron are 52 IARC and 2,200 MPa, respectively. The as-cast bainite ductile iron possesses highly abrasive wear resistance and the reason can be ascribed to the solid solution of the elements Si, Ni, Cu, and Mn in the austenite and the formation of carbides of elements Cr and Mo. The strength of bainite ductile iron is increased by the acicular bainitic ferrite in the matrix.
其他摘要	An as-cast bainite ductile iron with excellent mechanical properties and wear resistance was fabricated by alloying and centrifugal casting method, and the alloyed chemical composition was optimized by using the thermodynamic software Thermo-Calc. By using optical microscopy, transmission electron microscopy, scanning electron microscopy, and X-ray diffraction, the microstructure of the as-fabricated bainite ductile cast iron was characterized pertinent to the elements distribution in matrix and features of ferrite and retained austenite. The results of mechanical properties test show that the hardness and compressive strength of this alloyed ductile iron are 52 HRC and 2,200 MPa, respectively. The ascast bainite ductile iron possesses highly abrasive wear resistance and the reason can be ascribed to the solid solution of the elements Si, Ni, Cu, and Mn in the austenite and the formation of carbides of elements Cr and Mo. The strength of bainite ductile iron is increased by the acicular bainitic ferrite in the matrix.
关键词	TEMPERATURE GAMMA MN NI Bainite ductile iron Alloying Microstructure Abrasive wear resistance
收录类别	CSCD
语种	英语
资助项目	[National High Technology Research and Development Program] ; [National Natural Science Foundation of China]
CSCD记录号	CSCD:5198098
引用统计	被引频次：5[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/154523
专题	中国科学院金属研究所
作者单位	1.东北大学 2.中国科学院金属研究所 3.上海市地震局
推荐引用方式 GB/T 7714	Cui Junjun,Zhang Hongyun,Chen Liqing,et al. Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2014,27(3):476-482.
APA	Cui Junjun,Zhang Hongyun,Chen Liqing,Li Haizhi,&Tong Weiping.(2014).Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron.ACTA METALLURGICA SINICA-ENGLISH LETTERS,27(3),476-482.
MLA	Cui Junjun,et al."Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron".ACTA METALLURGICA SINICA-ENGLISH LETTERS 27.3(2014):476-482.