Gigacycle fatigue response of tool steels produced by powder metallurgy compared to ingot metallurgy tool steels

2010 ◽  
Vol 101 (9) ◽  
pp. 1140-1150 ◽  
Author(s):  
Christian Sohar ◽  
Agnieszka Betzwar-Kotas ◽  
Christian Gierl ◽  
Herbert Danninger ◽  
Brigitte Weiss
Keyword(s):  
Powder Metallurgy ◽  
Ingot Metallurgy ◽  
Tool Steels

CRUCIBLE CPM 10V, CPM 9V, MPL-1, CPM 440 V, CPM REX M4

Alloy Digest ◽  
1993 ◽  
Vol 42 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Wear Resistance ◽  
Corrosion Resistance ◽  
Powder Metallurgy ◽  
Corrosion And Wear ◽  
Tool Steels ◽  
Superior Corrosion Resistance

Abstract For demanding applications in industry, alloys have been custom crafted by powder metallurgy as systems for wear or wear/corrosion resistance. CPM 10V and 9V tool steels provide excellent wear resistance, and CPM 440 V, MPL-1, and CPM-M4 are used when superior corrosion resistance and excellent wear resistance are required This datasheet provides information on composition and hardness as well as fracture toughness. It also includes information on corrosion and wear resistance. Filing Code: TS-517. Producer or source: Crucible Materials Corporation.

Sintered High Carbon Steels: Effect of Thermomechanical Treatments on their Mechanical and Wear Performance

2008 ◽  
Vol 591-593 ◽  
pp. 271-276 ◽  
Author(s):  
M.A. Martinez ◽  
R. Calabrés ◽  
J. Abenojar ◽  
Francisco Velasco
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Powder Metallurgy ◽  
Thermomechanical Treatment ◽  
Bending Strength ◽  
Carbon Steels ◽  
Tool Steels ◽  
High Carbon ◽  
Wear Performance ◽  
Metallographic Study

In this work, ultrahigh carbon steels (UHCS) obtained by powder metallurgy with CIP and argon sintered at 1150°C. Then, they were rolled at 850 °C with a reduction of 40 %. Finally, steels were quenched at 850 and 1000 °C in oil. In each step, hardness, bending strength and wear performance were evaluated. Obtained results are justified with a metallographic study by SEM. Both mechanical properties and wear resistance are highly favoured with the thermomechanical treatment that removes the porosity of the material. Moreover, final quenching highly hardens the material. The obtained material could be used as matrix for tool steels.

Fracture Toughness of Powder Metallurgy and Ingot Titanium Alloys – A Review

2013 ◽  
Vol 551 ◽  
pp. 143-160 ◽  
Author(s):  
Ajit Pal Singh ◽  
Brian Gabbitas ◽  
De Liang Zhang
Keyword(s):  
Fracture Toughness ◽  
Powder Metallurgy ◽  
Titanium Alloys ◽  
Alloy Composition ◽  
Low Cost ◽  
Ingot Metallurgy ◽  
Metal Powders ◽  
Critical Factors ◽  
Microstructural Characteristics ◽  
High Degree

Powder metallurgy (PM) is potentially capable of producing homogeneous titanium alloys at relative low cost compared to ingot metallurgy (IM). There are many established PM methods for consolidating metal powders to near net shapes with a high degree of freedom in alloy composition and resulting microstructural characteristics. The mechanical properties of titanium and its alloys processed using a powder metallurgical route have been studied in great detail; one major concern is that ductility and toughness of materials produced by a PM route are often lower than those of corresponding IM materials. The aim of this paper is to review the fracture toughness of both PM and IM titanium alloys. The effects of critical factors such as interstitial impurities, microstructural features and heat treatment on fracture toughness are also discussed

Wear of a high cBN content PCBN cutting tool during hard milling of powder metallurgy cold work tool steels

Wear ◽  
2015 ◽  
Vol 332-333 ◽  
pp. 752-761 ◽  
Author(s):  
S. Saketi ◽  
S. Sveen ◽  
S. Gunnarsson ◽  
R. M’Saoubi ◽  
M. Olsson
Keyword(s):  
Powder Metallurgy ◽  
Cutting Tool ◽  
Cold Work ◽  
Tool Steels ◽  
Hard Milling

The Anodic Polarization Characteristics of Fe-Si-Al Alloys in 1N H2SO4

CORROSION ◽  
1984 ◽  
Vol 40 (4) ◽  
pp. 190-195 ◽  
Author(s):  
Sandra Wakefield ◽  
Franklin H. Beck ◽  
Gordon W. Powell
Keyword(s):  
Powder Metallurgy ◽  
Anodic Polarization ◽  
Aluminum Content ◽  
Al Alloys ◽  
Ingot Metallurgy ◽  
Corrosion Attack ◽  
Passive Transition ◽  
Polarization Characteristics ◽  
Passivation Potential

Abstract The anodic polarization characteristics in 1N H2SO4 (25 C) of Fe-8 Wt% Si, Fe-8Al and Fe-5Si-3Al alloys fabricated by conventional processing (ingot metallurgy) and of Fe-8Al fabricated by powder metallurgy were determined. With the exception of the Fe-8Si, the alloys undergo an active-to-passive transition. The passivation behavior is controlled by the aluminum content of the alloys, the aluminum decreasing the passivation potential. Although the appearance of the corrosion attack is different, the anodic polarization characteristics of the Fe-8Al alloy are essentially independent of the method of fabrication (i.e., ingot metallurgy vs powder metallurgy).

Powder-Metallurgy Tool Steels

1978 ◽  
Vol 21 (2) ◽  
pp. 114-123 ◽  
Author(s):  
A. Kasak ◽  
E. J. Dulis
Keyword(s):  
Powder Metallurgy ◽  
Tool Steels

Preparation of Molybdenum High Speed Tool Steels with Addition of Niobium Carbide by Powder Metallurgy Techniques

2014 ◽  
Vol 802 ◽  
pp. 102-107 ◽  
Author(s):  
Oscar Olimpio de Araújo Filho ◽  
Rodrigo Tecchio Antonello ◽  
Cezar Henrique Gonzalez ◽  
Severino Leopoldino Urtiga Filho ◽  
Francisco Ambrozio Filho
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Powder Metallurgy ◽  
Liquid Phase ◽  
High Speed ◽  
Niobium Carbide ◽  
High Energy ◽  
Tool Steels ◽  
Vacuum Sintering ◽  
Scanning Electron

High speed steels processed by Powder Metallurgy (PM) techniques present better mechanical properties when compared with similar steels obtained by the conventional process of cast to ingot and hot working. PM techniques produce improved microstructures with smaller and better distribution of carbides. Liquid phase sintering high speed steel seems to be a cheaper processing route in the manufacturing of tool steels if compared to the well-known and expansive hot isostatic pressing high speed steels. The introduction of niobium as alloying element began with the object of replacing elements like vanadium (V) and tungsten (W). Phase liquid sintering consists in a manufacturing technique to process high speed steels by powder metallurgy. The aim of this work of research is to process and obtain AISI M2 and M3:2 with and without the addition of niobium carbide by high energy milling, cold uniaxial compaction and vacuum sintering in the presence of a liquid phase. The powders of the AISI M2 and M3:2 were processed by high energy milling adding a small quantity of niobium carbide (6% in mass), then the powders were characterized by means of X-ray diffraction (XRD) and scanning electron Microscopy (SEM) plus energy dispersion spectroscopy (EDS) in order to evaluate the milling process. The powders of the AISI M2 and M3:2 with the addition of niobium carbide (NbC) were uniaxially cold compacted and then submitted to vacuum sintering. The sintered samples had their microstructure, porosity and carbide distribution observed and evaluated by means of Scanning Electron Microscopy (SEM) and the mechanical property of hardness was investigated by means of Vickers hardness tests. At least five samples of each steel were investigated.

scholarly journals Microstructure of advanced tool steels produced by powder metallurgy

2018 ◽  
Vol 18 (5) ◽  
pp. 821-827
Author(s):  
Jan Šerák ◽  
Vojtěch Pečinka ◽  
Dalibor Vojtěch
Keyword(s):  
Powder Metallurgy ◽  
Tool Steels ◽  
Advanced Tool

scholarly journals Copper alloys with improved properties: standard ingot metallurgy vs. powder metallurgy

2014 ◽  
Vol 20 (3) ◽  
pp. 207-216
Author(s):  
Milan T. Jovanović ◽  
Višeslava Rajković ◽  
Ivana Cvijović-Alagić
Keyword(s):  
Electrical Conductivity ◽  
Powder Metallurgy ◽  
Mechanical Alloying ◽  
Internal Oxidation ◽  
Copper Alloys ◽  
Microstructural Characterization ◽  
Ingot Metallurgy ◽  
Vacuum Melting ◽  
X Ray ◽  
Scanning Electron

Three copper-based alloys: two composites reinforced with Al2O3 particles and processed through powder metallurgy (P/M) route, i.e. by internal oxidation (Cu-2.5Al composite) and by mechanical alloying (Cu-4.7Al2O3 ) and Cu-0.4Cr-0.08Zr alloy produced by ingot metallurgy (vacuum melting and casting) were the object of this investigation. Light microscope and scanning electron microscope (SEM) equipped with electron X-ray spectrometer (EDS) were used for microstructural characterization. Microhardness and electrical conductivity were also measured. Compared to composite materials, Cu-0.4Cr-0.08Zr alloy possesses highest electrical conductivity in the range from 20 to 800 ℃, whereas the lowest conductivity shows composite Cu-2.5Al processed by internal oxidation. In spite to somewhat lower electrical conductivity (probably due to inadequate density), Cu-2.5Al composite exhibits thermal stability enabling its application at much higher temperatures than materials processed by mechanical alloying or by vacuum melting and casting.

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