Fatigue Behavior of High Speed Steel Roll Materials for Hot Rolling by Laser Impacting

Zhou, Li; Da-le, Sun; Liu, Changsheng; Wu, Qiong

doi:10.1016/s1006-706x(06)60109-x

Cited by 13 publications

(7 citation statements)

References 6 publications

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“…The service lives of these NCIRs can be prolonged by improving their wear resistance since their wear characteristic is the key factor in determining the roll performance. A lot of surface modification techniques on strengthening the rolls or repairing worn out rolls have been studied, such as thermal spraying [5], powder welding [6], laser shock hardening [7], laser cladding [8], laser texturing [9,10] and electrical discharge texturing [11]. Merits of the laser cladding process are to produce a clad layer of composite materials, reduced dilution and deformation, and excellent wear resistance by a rapid cladding process.…”

Section: Introductionmentioning

confidence: 99%

Laser surface alloying of C-B-W-Cr powders on nodular cast iron rolls

Sun

Zhou

et al. 2011

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Laser surface alloying of C-B-W-Cr powders on nodular cast iron rolls

Sun

Zhou

et al. 2011

Surface and Coatings Technology

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“…To improve the wear resistance, in particular, the most important factor is the formation of a number of discontinuous carbides homogeneously distributed inside cells or along cell boundaries. [19][20][21][22][23][24] A. Correlation between Carbides, Wear Loss, and Surface Roughness Figure 11(a) shows the relation between the volume fraction of MC carbide, the M 7 C 3 carbides, and the total carbides and wear loss.…”

Section: Discussionmentioning

confidence: 99%

Effects of Alloying Elements on Microstructure, Hardness, Wear Resistance, and Surface Roughness of Centrifugally Cast High-Speed Steel Rolls

Sung

Park

et al. 2009

Metall Mater Trans A

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A study was made of the effects of carbon, tungsten, molybdenum, and vanadium on the wear resistance and surface roughness of five high-speed steel (HSS) rolls manufactured by the centrifugal casting method. High-temperature wear tests were conducted on these rolls to experimentally simulate the wear process during hot rolling. The HSS rolls contained a large amount (up to 25 vol pct) of carbides, such as MC, M 2 C, and M 7 C 3 carbides formed in the tempered martensite matrix. The matrix consisted mainly of tempered lath martensite when the carbon content in the matrix was small, and contained a considerable amount of tempered plate martensite when the carbon content increased. The high-temperature wear test results indicated that the wear resistance and surface roughness of the rolls were enhanced when the amount of hard MC carbides formed inside solidification cells increased and their distribution was homogeneous. The best wear resistance and surface roughness were obtained from a roll in which a large amount of MC carbides were homogeneously distributed in the tempered lath martensite matrix. The appropriate contents of the carbon equivalent, tungsten equivalent, and vanadium were 2.0 to 2.3, 9 to 10, and 5 to 6 pct, respectively.

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“…Diamond was the standard for carbon. Correction to the measurement results was carried out by means of a correction programme of CAMECA Co., having application to the samples containing light elements [12,13,14]. The analyses of three different carbides were performed on the sample.…”

Section: Study Of Surface (C Cr Mo V) and Linear (Cr Mo V) Distrmentioning

confidence: 99%

“…less than that. There are many sources available concerning behaviour of M 7 C 3 carbides in steels [10][11][12][13][14][15][16]. Prolonged low-temperature gas-phase carburization of AISI 316L-type austenitic stainless steel can cause intragranular precipitation of the carbide M 7 C 3 (M: randomly dispersed Fe, Cr, Ni); the effect was observed by Ernst et al [16] .…”

Section: Introductionmentioning

confidence: 99%

Fluctuations in Chemical Composition of M₇C₃ Carbides in the Soft Annealed Nc11lv/D2 Steel

Hryniewicz

Nykiel

2014

Advances in Materials Science

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The paper presents the study results on chemical composition of the coarse primary M 7 C 3 carbides occurring in the soft annealed NC11LV/D2 tool steel consisting of: 1.53% C; 11.65% Cr; 0.01% W; 0.81% Mo; 0.068% V; (balance iron plus admixtures), used for cold operation. The microanalyzer of type SEMPROBE Su-30, French made by CAMECA Co., equipped with two WDS X-ray spectrometers and an EDS VOYAGER 3 100, NORAN Instruments Co., made in USA. It was found that out of the three alloying elements occurring in the big carbides of the annealed NC11LV/D2 steel, i.e. Cr, Mo, and V, the chromium appears to be the most uniformly distributed. The big carbides vary concerning C, Cr, Mo, V; the greatest differentiation degree of the contents of Mo and Cr, and the least -of vanadium. The average chemical composition of the big/coarse carbides is as follows: C = 9.42±1.28%; Cr = 44.17±2.95%; Mo = 4.48±3.52%; V = 4.53±0.31%; balance Fe.

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Fatigue Behavior of High Speed Steel Roll Materials for Hot Rolling by Laser Impacting

Cited by 13 publications

References 6 publications

Laser surface alloying of C-B-W-Cr powders on nodular cast iron rolls

Laser surface alloying of C-B-W-Cr powders on nodular cast iron rolls

Effects of Alloying Elements on Microstructure, Hardness, Wear Resistance, and Surface Roughness of Centrifugally Cast High-Speed Steel Rolls

Fluctuations in Chemical Composition of M₇C₃ Carbides in the Soft Annealed Nc11lv/D2 Steel

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Fatigue Behavior of High Speed Steel Roll Materials for Hot Rolling by Laser Impacting

Cited by 13 publications

References 6 publications

Laser surface alloying of C-B-W-Cr powders on nodular cast iron rolls

Laser surface alloying of C-B-W-Cr powders on nodular cast iron rolls

Effects of Alloying Elements on Microstructure, Hardness, Wear Resistance, and Surface Roughness of Centrifugally Cast High-Speed Steel Rolls

Fluctuations in Chemical Composition of M7C3 Carbides in the Soft Annealed Nc11lv/D2 Steel

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Fluctuations in Chemical Composition of M₇C₃ Carbides in the Soft Annealed Nc11lv/D2 Steel