Fe–24wt.%Cr–4.1wt.%C hardfacing alloy: Microstructure and carbide refinement mechanisms with ceria additive

Zhou, Yefei; Yang, Yong; Jiang, Ying; Yang, Jing; Ren, Xuejun; Yang, Qingxiang

doi:10.1016/j.matchar.2012.07.004

Cited by 46 publications

(23 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…And the core powders were composed of graphite, ferrochromium, ferrovanadium, ferromanganese, ferrosilicon, ferrotitanium and aluminum-magnesium alloy. Based on our prior experiences [20][21][22][23], the additions of Y 2 O 3 were 0, 0.63, 2.54 and 5.08 wt%, respectively.…”

Section: Experimental Materials and Methodsmentioning

confidence: 99%

“…Liu et al [19] studied that refinement of La 2 O 3 on M 7 C 3 carbide in the hypereutectic Fe-Cr-C alloy and laser cladding layer present the highest abrasion resistance when La 2 O 3 additive is 4 wt%. In our previous work, La 2 O 3 , CeO 2 and their sulfur oxides as heterogeneous nuclei of primary austenite for middle-high carbon steel [20,21], that of ferrite for medium carbon steel [22], and that of primary carbide for hypereutectic Fe-Cr-C coatings [23] were investigated, respectively. Moreover, past studies focused on the properties of additives with macro size.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Nano-Y2O3 on Wear Resistance of Hypereutectic Fe–Cr–C Hardfacing Coating

et al. 2015

Self Cite

View full text Add to dashboard Cite

The aim of this study was the investigation of the effect of different Y 2 O 3 additives on wear resistance of the hypereutectic Fe-Cr-C hardfacing coatings. The microstructures were observed by optical microscopy, field emission scanning electron microscopy and transmission electron microscopy, respectively. Meanwhile, the hardness was measured and the wear resistance was evaluated. Finally, the role of Y 2 O 3 was discussed. The microstructures of the coatings consist of the primary (Cr, Fe) 7 C 3 carbide and eutectic structure [austenite ? (Cr, Fe) 7 C 3 carbide]. Moreover, Y 2 O 3 can refine the M 7 C 3 carbide and improve the wear resistance of coatings obviously. Y 2 O 3 can absorb at the surface of the M 7 C 3 carbide and improve the wear resistance of the hypereutectic Fe-Cr-C hardfacing coatings.

show abstract

Section: Experimental Materials and Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of Nano-Y2O3 on Wear Resistance of Hypereutectic Fe–Cr–C Hardfacing Coating

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…One of the most common techniques to increase the hardness of last layer is self-shielded flux-cored wire welding. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17] Application of modern surface layer material can`t guarantee that obtained layers will be free of welding imperfection. Norm PN EN ISO 6520 includes classification of welding imperfection and divides it into 6groups: crack, cavieties, solid inclusions, lack of fusion and penetration, imperfection sharpe and dimension, miscellaneous imperfection.…”

Section: Introductionmentioning

confidence: 99%

“…Changes in parameters setting chance to obtain deposit layers with different hardness, microstructure and without imperfection. [1][2][3][11][12][13][14][15] The main goal of the present research is examining microstructure defects and different imperfection of hardfacing layers made with semi automatic and automatic technologies.…”

mentioning

confidence: 99%

Defects Appearing in the Surfacing Layers of Abrasion Resistant

Bęczkowski

Gucwa

2016

Archives of Foundry Engineering

View full text Add to dashboard Cite

The surfacing technologies are used for constitution of protection layer against wear and is destined for obtaining coating with high hardness. Among many weldings methods currently used to obtain the hard surface layer one of the most effective way of hardfacing is using flux cored arc welding. This additional material gives more possibilities to make expected hard surface layer. Chemical composition, property and economic factors obtained in flux cored wire are much richer in comparison to these obtained with other additional materials. This is the reason why flux cored wires give possibilities of application this kind of material for improving surface in different sectors of industry. In the present paper the imperfection in the layers was used for hardfacing process in different situations to show the possible application in the surface layer. The work presents studies of imperfection of the welds, contains the picture of microstructures, macrostructures and shows the results of checking by visual and penetrant testing methods.

show abstract

“…Our previous work shows that by adding the appropriate amount of rare earth (RE) elements, the M 7 C 3 carbide in the Fe-Cr-C-Ti alloy can be refined obviously, and then the wear resistance of Fe-Cr-C-Ti alloy can be improved dramatically [10,11]. Moreover, the effectiveness of LaAlO 3 as the heterogeneous nucleus of M 7 C 3 carbide was studied by mismatch theory.…”

Section: Introductionmentioning

confidence: 99%