Microstructure and abrasive wear resistance of an alloyed ductile iron subjected to deep cryogenic and austempering treatments
查看参考文献31篇
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文摘
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To further improve the mechanical performance of a new alloyed austempered ductile iron (ADI), deep cryogenic treatment (DCT) has been adopted to investigate the effect of DCT time on the microstructure and mechanical behaviors of the alloyed ADI Fe-3.55C-1.97Si-3.79Ni-0.71Cu-0.92Mo-0.64Cr-0.36Mn-0.30 V (in wt.%). With increasing the DCT time, more austenite transformed to martensite and very fine carbides precipitated in martensite in the extended period of DCT. The amount of austenite decreased in alloyed ductile irons, while that of martensite and carbide precipitation increased. The alloyed ADI after DCT for 6 h had the highest hardness and compressive strength, which can be attributed to the formation of more plate-like martensite and the finely precipitated carbides. There was a gradual decrease in hardness and compressive strength with increasing the DCT time to 12 h because of the dissolution of M3C carbide. After tempering, there was a decrease in mechanical properties compared to the direct DCT sample, which was caused by the occurrence of Ostwald ripening of precipitated carbides. The optimum wear resistance was achieved for the alloyed ADI after DCT for 6 h. The wear mechanism of the alloyed ADI in associating with DCT is mainly consisted of micro-cutting wear and some plastic deformation wear. |
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来源
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Journal of Materials Science & Technology
,2017,33(12):1549-1554 【核心库】
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DOI
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10.1016/j.jmst.2017.08.003
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关键词
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Alloyed ductile iron
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Austempering
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Deep cryogenic treatment (DCT)
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Microstructure
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Mechanical properties
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地址
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Northeastern University, State Key Laboratory of Rolling and Automation, Shenyang, 110819
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1005-0302 |
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学科
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金属学与金属工艺 |
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基金
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support from the National High Technology Research and Development Program of China
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文献收藏号
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CSCD:6148888
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参考文献 共
31
共2页
|
|
1.
Yang J.
Mater. Sci. Eng. A,2004,382:265-279
|
被引
1
次
|
|
|
|
|
2.
Solic S.
Metall Mater. Trans. A,2016,47:5058-5070
|
被引
1
次
|
|
|
|
|
3.
Putatunda S.
Proceedings of the 26th ASM Heat Treating Society Conference,2011:44-49
|
被引
1
次
|
|
|
|
|
4.
Yang J.
Mater. Sci. Eng. A,2005,406:217-228
|
被引
1
次
|
|
|
|
|
5.
Putatunda S K.
Mater. Sci. Eng. A,2006,435/436:112-122
|
被引
6
次
|
|
|
|
|
6.
Guerra L F V.
Mater. Sci. Eng. A,2015,648:193-201
|
被引
4
次
|
|
|
|
|
7.
Smith W F.
Structure and Properties of Engineering Alloys, 2nd ed,1993
|
被引
1
次
|
|
|
|
|
8.
Cui J J. Microstructure and Mechanical Properties of a Wear-Resistant As-Cast Alloyed Bainite Ductile Iron.
Acta Metall. Sin. (Engl. Lett.),2014,27:476-482
|
被引
5
次
|
|
|
|
|
9.
Bai Y L. Chemical Compositions,Microstructure and Mechanical Properties of Roll Core used Ductile Iron in Centrifugal Casting Composite Rolls.
J. Mater. Sci. Technol,2012,28:853-858
|
被引
2
次
|
|
|
|
|
10.
Cui J J.
Metall. Mater. Trans. A,2015,46:3627-3634
|
被引
4
次
|
|
|
|
|
11.
Zhirafar S.
J. Mater. Process. Technol,2007,186:298-303
|
被引
25
次
|
|
|
|
|
12.
Bensely A.
Cryogenics,2006,45:747-754
|
被引
12
次
|
|
|
|
|
13.
Baldissera P.
Mater. Des,2009,30:1435-1440
|
被引
12
次
|
|
|
|
|
14.
Vadivel K.
Int. J. Adv. Manuf. Technol,2009,42:222-232
|
被引
8
次
|
|
|
|
|
15.
Akhbarizadeh A.
Mater. Des,2009,30:3259-3264
|
被引
14
次
|
|
|
|
|
16.
Firouzdor V.
J. Mater. Process. Technol,2008,206:467-472
|
被引
22
次
|
|
|
|
|
17.
Solic S.
Materialwiss. Werkstofftech,2013,44(12):950-958
|
被引
1
次
|
|
|
|
|
18.
Solic S.
Test,2012,10:688-693
|
被引
1
次
|
|
|
|
|
19.
Das D.
Wear,2009,266:297-309
|
被引
9
次
|
|
|
|
|
20.
Amini K.
Vacuum,2012,86:1534-1540
|
被引
6
次
|
|
|
|
|
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