The Properties and Structure of Infiltrated High Speed Steel-Tungsten Carbide-Copper Composites

Marcin Madej

doi:10.4028/www.scientific.net/MSF.636-637.184

Paper Titles

Synthesis and Characterisation of Slag Based Geopolymers
p.155

Thermal Conductivity of Porous Alumina-Zirconia Prepared by Foam Technique for Applications in Cooling Systems of Artificial Satellites
p.161

Machinability of Al-4%wt Mg-Al₂O₃-Graphite Composites Produced by Compo-Casting Technique
p.171

Nanocrystallite Characterization of the MMC 316L-0.3%wtY₂O₃-3%wtTaC by Rietveld Refinement Method
p.177

The Properties and Structure of Infiltrated High Speed Steel-Tungsten Carbide-Copper Composites
p.184

The Effect of Ti Addition on the Properties of Al-B₄C Interface: A Microstructural Study
p.192

Fabrication and Characterization of Halogen-Free Flame Retardant Polyolefin Foams
p.198

Drilling of Carbon Fibre Reinforced Laminates – A Comparative Analysis of Five Different Drills on Thrust Force, Roughness and Delamination
p.206

Glass/Polyvinyl Chloride Composites
p.214

HomeMaterials Science ForumMaterials Science Forum Vols. 636-637The Properties and Structure of Infiltrated High...

The Properties and Structure of Infiltrated High Speed Steel-Tungsten Carbide-Copper Composites

Abstract:

The aim of the present study was to produce high speed steel – tungsten carbide – copper composites, which should have acceptable density, wear resistance and good sliding prosperities. Various amounts of WC powder were added to the HSS powder prior to compaction. The following compositions were investigated: 100% M3/2, M3/2 + 10% WC and M3/2 + 30%WC. The mixtures were prepared by mixing for 30 minutes in the 3-D pendulum motion Turbula® T2C mixer. Then the powders were cold pressed in a rigid cylindrical die at 800 MPa. Both green compacts and pre-sintered compacts (pre-sintering condition: 1150°C in vacuum for 60 minutes) were infiltrated with copper. The whole infiltration process was carried out in vacuum better than 10-3 Pa. Pre-weighed preforms of copper were carefully placed on top of the rigid skeletons in which porosity were predetermined, heated up to 1150°C, subsequently held at temperature for 15 minutes, and cooled down with the furnace to the room temperature. The dilatometer was used to detect some reaction in the sintering. The changes in as pressed and as sintered density, hardness, bending strength and tribological properties are discussed in this work.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Materials Science Forum (Volumes 636-637)

Pages:

184-191

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.636-637.184

Citation:

Cite this paper

Online since:

January 2010

Authors:

Marcin Madej

Keywords:

Composite, Copper (Cu), High Speed Steel, Infiltration, Sintering, Tungsten Carbide

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Greetham G.: Development and performance on infiltrated and non-infiltrated valve seat insert materials and their performance. Powder Metallurgy Vol. 3, No 2, (1990), pp.112-114.

Google Scholar

[2] Rodrigo H. Plama: Tempering response of copper alloy-infiltrated T15 high-speed steel, The International Journal of Powder Metallurgy Vol. 37, No 5 (2001), pp.29-35.

Google Scholar

[3] Wright C.S.: The production and application of PM high-speed steels. Powder Metallurgy Vol. 3 (1994), pp.937-944.

Google Scholar

[4] Leżański J.: Infiltracja cieczy w porowatych materiałach. Metalurgia i Odlewnictwo 1988, nr 118.

Google Scholar

[5] Torralba J.M. G. Cambronero, J. M. Ruiz-Pietro, M. M das Neves: Sinterability study of PM M2 and T15 HSS reinforced with tungsten and titanium carbides Vol. 36 (1993), pp.55-66.

DOI: 10.1179/pom.1993.36.1.55

Google Scholar