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Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron
Alternative TitleMicrostructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron
Cui Junjun1; Zhang Hongyun1; Chen Liqing1; Li Haizhi3; Tong Weiping3
2014
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume27Issue:3Pages:476-482
AbstractAn 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.
Other AbstractAn 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.
KeywordTEMPERATURE GAMMA MN NI Bainite ductile iron Alloying Microstructure Abrasive wear resistance
Indexed ByCSCD
Language英语
Funding Project[National High Technology Research and Development Program] ; [National Natural Science Foundation of China]
CSCD IDCSCD:5198098
Citation statistics
Cited Times:5[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/154520
Collection中国科学院金属研究所
Affiliation1.东北大学
2.中国科学院金属研究所
3.上海市地震局
Recommended Citation
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.
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