The HIP way to make cleaner, better steels

Grinder, Olle

doi:10.1016/s0026-0657(07)70190-x

Cited by 15 publications

(4 citation statements)

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“…W. Breelor developed M2 high speed steel high carbon content tool steel developed in 1937, which has been widely used in machining as a lathe sharpening material owing to its good wear resistance [1]. At present, the main production processes consist of melting and casting, electroslag remelting, and powder metallurgy.…”

Section: Introductionmentioning

confidence: 99%

Effects of Nano TiC on the Microhardness and Friction Properties of Laser Powder Bed Fusing Printed M2 High Speed Steel

Liu

Zhao

et al. 2022

Coatings

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In this work, TiC/M2 high speed steel metal matrix composites (MMCs) were prepared using the ball milling method and laser powder bed fusing process. By controlling the TiC content in TiC/M2HSS, the grain size, phase composition, and frictional wear properties of the samples were enhanced. The results showed that when TiC/M2HSS was supplemented with 1% TiC, the surface microhardness of the samples increased to a maximum value and the wear volume decreased by approximately 39%, compared to pure M2HSS. The hardness and friction wear properties of the TiC/M2HSS composites showed a decreasing trend as the TiC content increased, owing to an increase in internal defects in the samples, as a result of excess TiC addition. The physical phases of the TiC/M2HSS MMC samples prepared by LPBF were dominated by the BCC phase, with some residual FCC phases and carbide phases. This work explored the possibility of enhancing the frictional wear performance of TiC/M2HSS samples by controlling the TiC content.

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Section: Introductionmentioning

confidence: 99%

Effects of Nano TiC on the Microhardness and Friction Properties of Laser Powder Bed Fusing Printed M2 High Speed Steel

Liu

Zhao

et al. 2022

Coatings

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“…In general, the PM process for preparing HSS mainly includes hot isostatic pressing (HIP), pressureless sintering, and injection moulding. During the HIP process, gas atomised HSS powder and steel capsule are employed [8]. Besides, the requirements for HSS powder quality are very stringent and the manufacturing process is relatively complex.…”

Section: Introductionmentioning

confidence: 99%

In-situ VN reinforced powder metallurgy M30 steels prepared from water atomized powers via pressureless sintering

et al. 2020

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In this paper, in-situ VN reinforced powder metallurgy high-speed steel was fabricated from water atomised powder via pressureless sintering. During sintering, N would replace C to react with V, resulting in the formation of in-situ VN phase. According to the first-principles calculations, the formation energy of VN was -9.45 eV while that of VC was -9.08 eV. The relative density of as-sintered samples reached up to 99%. Homogeneous microstructure and fine reinforced phases were obtained. Ultrafine VN phase (0.5 μm) was uniformly distributed in the matrix. As a result, the mechanical properties were improved. The optimal mechanical performance was obtained in the sample with 1.0 wt.% C addition. The hardness, bend strength and impact energy were 65 HRC, 3011 MPa and 18-22 J, respectively. Besides, the sintering window significantly increased from ∼10 to 30∼50°C.

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“…On the other hand steel produced by powder metallurgy (PM) achieves much finer and more homogeneous structures. In addition by PM it is possible to prepare unique chemical compositions absolutely unattainable by CM [3]. Ultimately tool steels prepared by PM can improve tool economy compared with CM steels due to improved workability, dimensional stability during heat treatment and longer lifetime of the tool, although they represent higher initial costs.…”

Section: Introductionmentioning

confidence: 99%

“…Ultimately tool steels prepared by PM can improve tool economy compared with CM steels due to improved workability, dimensional stability during heat treatment and longer lifetime of the tool, although they represent higher initial costs. [3]. High-alloy ledeburitic steels, the temperature of the martensite transition of which lies below the freezing point, are excellent in terms of wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Study of Differences between Results from Raboratory Tests and Tests of Real Tools for Selected Cold Work Tool Steels

Kuřík

Sobotová

Moravcová

2019

DDF

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The growing pressure on tool performance and durability increases demands on the materials used and on the choice of optimal heat treatment. The properties of tool steels produced by conventional and powder metallurgy (1.2379, Vanadis 23) were compared after different heat treatment modes. Cryogenic treatment was performed in several batches for 4 hours at-90°C or-196°C. Cryogenic treatment was inserted between quenching and tempering. Mechanical properties were evaluated by hardness tests and three-point bending strength and wear resistance by Pin-on-disk tests. Metallographic analysis was performed using light and electron microscopy. On the basis of the results obtained both materials were subject to selected heat treatment and experimental forming tools produced which were used in operation. During operation the wear of the tools (shape change and volume loss) was assessed. Results of the laboratory tests were then compared with operation tests.

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The HIP way to make cleaner, better steels

Cited by 15 publications

References 0 publications

Effects of Nano TiC on the Microhardness and Friction Properties of Laser Powder Bed Fusing Printed M2 High Speed Steel

Effects of Nano TiC on the Microhardness and Friction Properties of Laser Powder Bed Fusing Printed M2 High Speed Steel

In-situ VN reinforced powder metallurgy M30 steels prepared from water atomized powers via pressureless sintering

Study of Differences between Results from Raboratory Tests and Tests of Real Tools for Selected Cold Work Tool Steels

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