A study of the abrasive wear behaviour of laser-clad tool steel coatings

Wang, Sheng-Hui; Chen, Jianyin; Xue, Lijue

doi:10.1016/j.surfcoat.2004.10.125

Cited by 99 publications

(63 citation statements)

References 20 publications

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“…It should be noted that, in case of LC CPM 9V, as compared with conventional tool steels, the hardness is not the direct measure of the wear resistance. As detailed elsewhere [32], the vanadium carbides (in addition to the fine microstructure) in LC CPM 9V steel will account for the higher wear resistance in spite of the overall lower hardness as compared to D2 steel. It is believed that the vanadium-rich MC carbides are the hardest and therefore the most wear resistant, usually found in tool steels, as compared to the much less effective chromium-rich carbides (such as M 7 C 3 -type), which predominate in the D2 tool steel (almost 21 vol.% [43]).…”

Section: Wear Resistancesmentioning

confidence: 91%

“…In contrast, CPM 9V steel belongs to a family of novel CPM tool steels, which possess substantially improved abrasive wear resistance in combination with enhanced toughness and heat check resistance due to the presence of a high amount of primary vanadium carbides in the matrix [28]. Only a few works such as in [12,[31][32][33][34] on laser deposition of CPM serial tool steels, however, have been reported so far since the high hardness of the steels might inevitably induce thermal cracking during the processes, especially in the case of freeform fabrication, bringing in a technical challenge to their material processability.…”

Section: Introductionmentioning

confidence: 99%

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Freeform Laser Consolidated H13 and CPM 9V Tool Steels

Xue

Chen

Wang

2013

Metallogr. Microstruct. Anal.

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As a novel computer-aided materials additive manufacturing process, the freeform laser consolidation (LC) can directly produce functional shapes (features or structures) through a ''layer-upon-layer'' deposition. In this research, LC processability of both H13 and CPM 9V tool steels and their mechanical performance thus obtained were investigated. Both laser-consolidated tool steels were metallurgically sound with no crack, exhibiting layer-wise refined solidified structures with dominated martensite and small amount of retained austenite, as well as compositiondependent carbides. Laser-consolidated H13 could outperform its wrought counterpart mechanically as measured by tensile strength/strain, and bonding strength as well as sliding wear resistance; laser-consolidated CPM 9V could provide excellent sliding wear resistance superior to the conventional widely used tool steel (such as wrought D2). These unique microstructures and mechanical properties could be tailored for niche applications in additive manufacturing of tools, molds, and dies.

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Section: Wear Resistancesmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Freeform Laser Consolidated H13 and CPM 9V Tool Steels

Xue

Chen

Wang

2013

Metallogr. Microstruct. Anal.

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“…Apart of conventional casting, powder metallurgy, Ospray process, spraying and laser sintering or cladding take place [10][11][12][13][14][15][16]. The usage of PTA and pulse-PTA method for preparing HSS components and coatings was studied rarely [17].…”

Section: Introductionmentioning

confidence: 99%

HSS Deposition by Pta – Feasibility and Properties

Rohan¹,

Kramár²,

Petr³

2016

Adv. Sci. Technol. Res. J.

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High speed steels (HSS) as iron alloys reinforced by carbides of tungsten, chromium, vanadium and/or cobalt are known for more than 100 years. HSS is commonly used for cutting tools fabrication because of their high hardness, ductility, and strength and temperature resistance. Recently many different kinds of thin layers are often deposited on HSS tools in order to increase their lifetime. HSS are produced by conventional metallurgical methods and the tools are hardened by quenching and tempering. Recently, large part of HSS tools are produced by powder metallurgy (i.e. HIPhot isostatic pressing). There are also some studies about thermal spraying of HSS but there is no evidence about Plasma Transfer Arc cladding of HSS. Two powders of HSS 23, resp. HSS30 grade were selected and deposited by Plasma Transfer Arc (PTA) and pulsed PTA on to mild steel substrate. In order to find the ability of thick layer forming, four layers cladding were used. To minimize heat input the influence of 76 Hz pulsation was also studied. Vickers hardness was measured on cross section and metallography of coatings was done. It was found that with selected parameters thick layer of HSS can be deposited. Pulsation increases the hardness of coatings in comparison with layers produced by direct current PTA. PTA and pulsed PTA methods of HSS parts fabrication can be used for both manufacturing and reparation of cutting tools and also for 3D additive manufacturing process.

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“…Size and hardness ratio between abrasives and hardphases as well as the volumetric characteristics of the hardphase network are key factors influencing the wear resistance of materials of interest. Evidently for tool steels, the primary carbide structure determines the wear character shown for high-speed steels [12,13]. More flexibility in wear design is given for reinforced composites by choosing the kind of hardparticle, its size and content.…”

Section: Introductionmentioning

confidence: 99%

Relation Between Inter-Particle Distance (L IPD) and Abrasion in Multiphase Matrix–Carbide Materials

2008

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Five different carbide-matrix coatings (laser claddings) have been investigated about correlation of their specific structural parameters-especially volumetric carbide distribution-with ASTM G65 abrasion wear rates. For this study, the hardphase networks of laser claddings have been characterized by specific structural parameters, such as mean inter-particle distance, mean carbide diameter, carbide area fraction, and matrix hardness. To generate quantitative values for the inter-particle distances a particular method was developed. From regression analyses, it has become evident that wear effects arising from carbide inter-particle distance surpass the influence of carbide diameter and that of carbide fraction. Only minor contribution to abrasive wear rates is related with matrix hardness.

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A study of the abrasive wear behaviour of laser-clad tool steel coatings

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Cited by 99 publications

References 20 publications

Freeform Laser Consolidated H13 and CPM 9V Tool Steels

Freeform Laser Consolidated H13 and CPM 9V Tool Steels

HSS Deposition by Pta – Feasibility and Properties

Relation Between Inter-Particle Distance (L IPD) and Abrasion in Multiphase Matrix–Carbide Materials

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