Classic contributions: cryogenic treatment Deep cryogenic treatment of a D2 cold work tool steel

2008 ◽  
Vol 2 (3-4) ◽  
pp. 150-154 ◽  
Author(s):  
D. N. Collins ◽  
J. Dormer
Keyword(s):  
Tool Steel ◽  
Cryogenic Treatment ◽  
Cold Work ◽  
Deep Cryogenic Treatment ◽  
Cold Work Tool Steel

scholarly journals Influence of Cryogenic Treatment on Wear Resistance and Microstructure of AISI A8 Tool Steel

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1038 ◽  
Author(s):  
Pello Jimbert ◽  
Maider Iturrondobeitia ◽  
Julen Ibarretxe ◽  
Roberto Fernandez-Martinez
Keyword(s):  
Wear Resistance ◽  
Tool Steel ◽  
Scientific Literature ◽  
Wear Behavior ◽  
Cryogenic Treatment ◽  
Cold Work ◽  
Secondary Carbide ◽  
Tool Steels ◽  
Deep Cryogenic Treatment ◽  
Cold Work Tool Steel

The effects of deep cryogenic treatment (DCT) on the wear behavior of different tool steels have been widely reported in the scientific literature with uneven results. Some tool steels show a significant improvement in their wear resistance when they have been cryogenically treated while others exhibit no relevant amelioration or even a reduction in their wear resistance. In this study, the influence of DCT was investigated for a grade that has been barely studied in the scientific literature, the AISI A8 air-hardening medium-alloy cold work tool steel. Several aspects were analyzed in the present work: the wear resistance of the alloy, the internal residual stress, and finally the secondary carbide precipitation in terms of lengths and occupied area and its distribution into the microstructure. The results revealed a reduction in the wear rate of about 14% when the AISI A8 was cryogenically treated before tempering. The number of carbides that precipitated into the microstructure was 6% higher for the cryogenically treated samples, increasing from 0.68% to 0.73% of the total area they covered. Furthermore, the distribution of the carbides into the microstructure was more homogenous for the cryogenically treated samples.

scholarly journals Experimental Investigation Of Segregation Of Carbon Atoms Due To Sub-Zero Cryogenic Treatment In Cold Work Tool Steel By Mechanical Spectroscopy And Atom Probe Tomography

2015 ◽  
Vol 60 (2) ◽  
pp. 1109-1113 ◽  
Author(s):  
N. Min ◽  
H.M. Li ◽  
CH. Xie ◽  
X.C. Wu
Keyword(s):  
Tool Steel ◽  
Atom Probe Tomography ◽  
Martensite Transformation ◽  
Cryogenic Treatment ◽  
Cold Work ◽  
Atom Probe ◽  
Peak Height ◽  
Mechanical Spectroscopy ◽  
Soaking Time ◽  
Cold Work Tool Steel

Abstract In this work, we present mechanical spectroscopy of cold work tool steel subjected to sub-zero cryogenic soaking treatment to reveal the carbon segregation and the subsequent carbides refinement. The maximum of Snoek-Köster (SK) peak height was obtained in the sample subjected to soaking 1h at −130°C cryogenic treatment. The SK peak height is reduced with prolonging the soaking time. The results indicate that an increase in the height of SK peak is connected with an increase in dislocation density and the number of segregated carbon atoms in the vicinity of dislocations or twin planes after martensite transformation at −130°C which is confirmed by corresponding TEM and atom probe tomography measurement. Hence, it is suggested that the isothermal martensite, formed during the cryogenic soaking treatment decreases (APT) the height of SK peak.

UNS T30407

Alloy Digest ◽  
1985 ◽  
Vol 34 (4) ◽  
Keyword(s):  
Tool Steel ◽  
Vanadium Carbide ◽  
Cold Work ◽  
Heat Treating ◽  
Cold Extrusion ◽  
High Carbon ◽  
Extrusion Dies ◽  
Steel Mills ◽  
Aisi Type ◽  
Cold Work Tool Steel

Abstract UNS No. T30407 is a high-carbon chromium cold-work tool steel containing vanadium (4.0%) and molybdenum (1.0%). Its carbon and vanadium form a vanadium carbide that provides war resistance many times greater than that of UNS No. T30403 (AISI Type D3). UNS No. T30407 was developed for applications where extreme abrasive wear is needed. Its many applications include briquetting dies and punches, brick mold liners, pottery, tools, broaches, meat-chopper plates and cold-extrusion dies. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-439. Producer or source: Tool steel mills.

CYCLOPS SCK

Alloy Digest ◽  
1979 ◽  
Vol 28 (3) ◽  
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Physical Properties ◽  
Tool Steel ◽  
Cold Work ◽  
Heat Treating ◽  
Optimum Combination ◽  
Cold Work Tool Steel ◽  
Minimum Distortion

Abstract CYCLOPS SCK is a cold-work tool steel with a balanced composition to provide air hardening and an optimum combination of toughness, wear resistance and minimum distortion during heat treatment. Typical applications are shear blades, trimming dies and forming rolls, including grade rolls for cutlery and flatware. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-346. Producer or source: Cyclops Corporation.

BÖHLER K100

Alloy Digest ◽  
2020 ◽  
Vol 69 (3) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Abrasive Wear ◽  
Tool Steel ◽  
Cold Work ◽  
Abrasive Wear Resistance ◽  
High Carbon ◽  
High Chromium ◽  
Cold Work Tool Steel

Abstract Böhler K100 is a high-carbon, high-chromium (12%), alloy cold-work tool steel that is suitable for medium run tooling in applications where a very good abrasive wear resistance is needed but where demands on chipping resistance are small. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming and machining. Filing Code: TS-788. Producer or source: voestalpine Böhler Edelstahl GmbH & Co.

HITACHI METALS SLD-MAGIC

Alloy Digest ◽  
2020 ◽  
Vol 69 (10) ◽  
Keyword(s):  
High Temperature ◽  
Physical Properties ◽  
Tool Steel ◽  
High Performance ◽  
Cold Work ◽  
Heat Treating ◽  
Temperature Performance ◽  
Mold Fabrication ◽  
Cold Work Tool Steel

Abstract Hitachi Metals SLD-Magic is a high-performance alloy cold-work tool steel that is characterized by improved mold lifespan and easy mold fabrication. This datasheet provides information on composition, physical properties, hardness, elasticity as well as fatigue. It also includes information on low and high temperature performance as well as heat treating, machining, and joining. Filing Code: TS-802. Producer or source: Hitachi Metals Ltd.

BOEHLER K294 MICROCLEAN

Alloy Digest ◽  
2012 ◽  
Vol 61 (5) ◽  
Keyword(s):  
Physical Properties ◽  
Tool Steel ◽  
Cold Work ◽  
Heat Treating ◽  
Powder Metal ◽  
Cold Work Tool Steel

Abstract Böhler K294 Microclean is a powder metallurgically produced cold work tool steel. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on heat treating and powder metal forms. Filing Code: TS-702. Producer or source: Böhler-Uddeholm Corporation.

CRYODUR 2550

Alloy Digest ◽  
2019 ◽  
Vol 68 (8) ◽  
Keyword(s):  
Physical Properties ◽  
Tool Steel ◽  
Cold Work ◽  
Cold Work Tool Steel

Abstract Cryodur 2550 cold work tool steel for cutting, punching, and folding. This datasheet provides information on composition, physical properties, and hardness. It also includes information on joining. Filing Code: TS-774. Producer or source: Schmolz + Bickenbach USA Inc..

LESCOWEAR

Alloy Digest ◽  
2005 ◽  
Vol 54 (11) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Tool Steel ◽  
Cold Work ◽  
Heat Treating ◽  
Cold Work Tool Steel

Abstract Lescowear is a medium-chromium-containing air-hardening cold-work tool steel. It is a versatile alloy with a combination of toughness and wear resistance. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on wear resistance as well as forming, heat treating, and machining. Filing Code: TS-623. Producer or source: Timken Latrobe Steel.

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