The precipitation and transformation of secondary carbides in a high chromium cast iron

Wang, Jun; Liu, Cong; Liu, Haohuai; Yang, Huihui; Bao-luo, Shen; Gao, Shenji; Huang, Sijiu

doi:10.1016/j.matchar.2005.10.002

Cited by 75 publications

(44 citation statements)

References 10 publications

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“…The observed microstructural features have also been identified by previous studies (Ref [6][7][8][9][10]. The mechanism of martensitic transformation for these specific alloys is well established ( Ref 1,[5][6][7][8][9][10][11][12]. In this work, apart from these phases, some pearlitic morphologies can also be distinguished, attributed to locally lower cooling rates.…”

Section: Heat Treatment Asupporting

confidence: 81%

Microstructural Modifications of As-Cast High-Chromium White Iron by Heat Treatment

Karantzalis

Lekatou

Mavros

2008

J. of Materi Eng and Perform

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Section: Heat Treatment Asupporting

confidence: 81%

Microstructural Modifications of As-Cast High-Chromium White Iron by Heat Treatment

Karantzalis

Lekatou

Mavros

2008

J. of Materi Eng and Perform

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“…As reported in previous section ( Fig. 3 (a) and (b)), primary and eutectic carbides as well as ferrous matrix were refined with varying degrees due to plastic deformation, while secondary carbides precipitated because of austenite destabilisation [32] during thermomechanical treatment. In addition, one more significant finding is no discernible cracks can be found in this brittle layer, which means that the HCCI was successfully deformed with crack-free under the soft cladding conditions.…”

Section: Interfacesupporting

confidence: 76%

Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding

Jiang

Gao

et al. 2015

J. Iron Steel Res. Int.

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. (2015). Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding. Journal of Iron and Steel Research International, 22 (5), 438-445. Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding AbstractA hot compression bonding process was developed to prepare a novel laminated composite consisting of highCr cast iron (HCCI) as the inner layer and low carbon steel (LCS) as the outer layers on a Gleeble 3500 thermomechanical simulator at a temperature of 950 °C and a strain rate of 0.001 S -1 . Interfacial bond quality and hot deformation behaviour of the laminate were studied by microstructural characterisation and mechanical tests. Experimental results show that the metallurgical bond between the constituent metals was achieved under the proposed bonding conditions without discernible defects and the formation of interlayer or intermetallic layer along the interface. The interfacial bond quality is excellent since no deterioration occurred around the interface which was deformed by Vickers indentation and compression test at room temperature with parallel loading to the interface. After well cladding by the LCS, the brittle HCCI can be severely deformed (about 57 % of reduction) at high temperature with crack-free. This significant improvement should be attributed to the decrease of crack sensitivity due to stress relief by soft claddings and enhanced flow property of the HCCI by simultaneous deformation with the LCS.

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“…Results of Wang et al (2006) show that longer time of the destabilization treatments at temperatures lower than 1,100°C leads to transformation of fi ne M 23 C 6 cubic precipitates into M 7 C 3 rods, with an orientation relationship between M 23 C 6 and M 7 C 3 . Th e results of this present study show that the destabilization time signifi cantly infl uenced the carbide size into austenitic matrix and the precipitation process caused a change of chemical content of austenite.…”

Section: Effect Of Heat Treatment On Microstructure Of the Hardfacingmentioning

confidence: 98%

“…Researchers Wang et al (2006) and Kootsookos and Gates (2008) have shown that for destabilization temperatures higher than 1,100°C, the precipitated carbides are of the M 7 C 3 form, for destabilization treatments lower than 1,100°C they showed M 7 C 3 carbides and M 23 C 6 carbides. Results of Wang et al (2006) show that longer time of the destabilization treatments at temperatures lower than 1,100°C leads to transformation of fi ne M 23 C 6 cubic precipitates into M 7 C 3 rods, with an orientation relationship between M 23 C 6 and M 7 C 3 .…”

Section: Effect Of Heat Treatment On Microstructure Of the Hardfacingmentioning

confidence: 99%

“…Incipient secondary phase was created soon by critical temperature but volume secondary phases in austenite phase depend on destabilization temperature and time (Karantzalis et al 2009;Albertin et al 2011). Results of Wang et al (2006) have shown that precipitation of the secondary carbides starts at 580°C (subcritical heat treatment) as cubic M 23 C 6 carbide type. Diff erences are seen in the secondary carbide precipitation and transformation, depending on the thermal treatment conditions.…”

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confidence: 99%

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Effect of destabilization treatment on microstructure, hardness and abrasive wear of high chromium hardfacing

Chotěborský¹,

Hrabě²

2013

Res. Agric. Eng.

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Chotborský R., Hrab P., 2013. Eff ect of destabilization treatment on microstructure, hardness and abrasive wear of high chromium hardfacing. Res. Agr. Eng., 59: 128-135.Hardfacing metals are widely used in arc welding and plasma transfer arc technologies and industries. However, application of hardfacing in agriculture is limited due to low toughness after weld depositing. Th is study was focused on destabilization of high chromium hardfacing metal. Th e hardfacing was destabilized at 900 and 1,000°C in the diff erent treatment time intervals. Destabilization treatment showed precipitation of secondary carbides leading to partial transformation of austenite to martensite phase in the matrix. Th e results show that increasing destabilization temperature increased volume of carbide phase in austenitic matrix which aff ects abrasive wear resistance .

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The precipitation and transformation of secondary carbides in a high chromium cast iron

Cited by 75 publications

References 10 publications

Microstructural Modifications of As-Cast High-Chromium White Iron by Heat Treatment

Microstructural Modifications of As-Cast High-Chromium White Iron by Heat Treatment

Interface analysis and hot deformation behaviour of a novel laminated composite with high-Cr cast iron and low carbon steel prepared by hot compression bonding

Effect of destabilization treatment on microstructure, hardness and abrasive wear of high chromium hardfacing

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