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http://dx.doi.org/10.4150/KPMI.2002.9.5.303

Fabrication and Mechanical Properties of Powder Metallurgical High Speed Steels with Various Co Contents  

홍성현 (한국기계연구원 재료연구부)
배종수 (한국기계연구원 재료연구부)
김용진 (한국기계연구원 재료연구부)
Publication Information
Journal of Powder Materials / v.9, no.5, 2002 , pp. 303-306 More about this Journal
Abstract
P/M high speed steels with various Co contents were fabricated by gas atomization and Canning/HIP process. As Co content in P/M high speed steel increased, hardness, transverse rupture strength and yield strength in compressive testing increased due to solid solution hardening of Co in matrix. Especially, PM high speed steels with Co have high deformation resistance to repeated compressive loading.
Keywords
Powder metallurgy; High speed steel; Mechanical property; Cobalt effect; Punch;
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