Structure and properties of powder metallurgy high-speed steels after laser treatment

The goal of the work is fabrication coatings with the pressureless forming method or laser treatment retaining the relatively high ductility of the coated tool's core. The paper presents selection of the binder portion and type, and also of the metallic and carbides powders (WC) being the constituents of the polymer-powder slurry which was applied onto the prepared surfaces of the test pieces from the conventional HS6-5-2 high speed steel. This materials was compared with the same conventional HS6-5-2 high speed steel heat-treatable steel after laser treatment conditions and alloying additions contained in WC. Investigation indicate the influence of the alloying carbides on the structure and properties of the surface layer of investigated steel depending on manufacturing conditions and power implemented laser (HPDL). In the effect of laser alloying with powders of carbides occurs size reduction of microstructure as well as dispersion hardening through fused in but partially dissolved carbides and consolidation through enrichment of surface layer in alloying additions coming from dissolving carbides. The resistivity to thermal fatique of laser remelted steel is higher than steel after heat treatment. It shows the possibility of applying the worked out technology to manufacturing or regeneration of chosen hot working tools.

Download Full-text

YSS HAP72

Alloy Digest ◽

10.31399/asm.ad.ts0779 ◽

2019 ◽

Vol 68 (10) ◽

Keyword(s):

Wear Resistance ◽

High Temperature ◽

Powder Metallurgy ◽

Tool Steel ◽

High Speed ◽

High Wear Resistance ◽

Bend Strength ◽

Temperature Performance ◽

Very High

Abstract YSS HAP72 is a powder metallurgy high-speed tool steel with a very high wear resistance. This datasheet provides information on composition, hardness, and bend strength. It also includes information on high temperature performance. Filing Code: TS-779. Producer or source: Hitachi Metals America Ltd.

Download Full-text

VANADIS 23

Alloy Digest ◽

10.31399/asm.ad.ts0561 ◽

1998 ◽

Vol 47 (10) ◽

Keyword(s):

Fracture Toughness ◽

Wear Resistance ◽

Powder Metallurgy ◽

Physical Properties ◽

Surface Treatment ◽

Tool Steel ◽

High Speed ◽

High Speed Steel ◽

Heat Treating

Abstract Vanadis 23 is a Cr-Mo-W-Va alloyed high-speed steel made by powder metallurgy. The tool steel offers an excellent combination of wear resistance and toughness. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on heat treating, machining, and surface treatment. Filing Code: TS-561. Producer or source: Uddeholm Corporation. See also Alloy Digest TS-552, March 1997.

Download Full-text

LESCO T-15 PM

Alloy Digest ◽

10.31399/asm.ad.ts0498 ◽

1990 ◽

Vol 39 (8) ◽

Keyword(s):

Powder Metallurgy ◽

Physical Properties ◽

Tool Steel ◽

Abrasion Resistance ◽

High Speed ◽

Heat Treating ◽

High Carbon ◽

Steel Company ◽

Good Retention ◽

Hot Hardness

Abstract LESCOT-15 PM is a special purpose tungsten type high-speed tool steel containing cobalt for good retention of hot hardness and high carbon and vanadium for enhanced abrasion resistance. It is produced by powder metallurgy. This datasheet provides information on composition, physical properties, microstructure, hardness, and elasticity. It also includes information on heat treating and machining. Filing Code: TS-498. Producer or source: Latrobe Steel Company. Originally published August 1989, revised August 1990.

Download Full-text