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標題: The effects of additive elements on the microstructure characteristics and mechanical properties of Cr-Fe-C hard-facing alloys
作者: Lin, C.M.
Chang, C.M.
Chen, J.H.
Wu, W.T.
關鍵字: Metals and alloys;Powder metallurgy;Mechanical properties;Microstructure;white cast-iron;fracture-toughness;indentation fracture;wear;behavior;(cr,fe)(23)c-6 carbides;hardfacing alloys;resistance;ceramics;alumina
Project: Journal of Alloys and Compounds
期刊/報告no:: Journal of Alloys and Compounds, Volume 498, Issue 1, Page(s) 30-36.
The present investigation discusses the effects of V, Mo, and Ni addition on the morphologies and mechanical properties of primary carbides and eutectic colonies in Cr-Fe-C hard-facing alloys with hypereutectic compositions. Findings show that V, Mo, and Ni addition obviously affects the hardness and indentation fracture (K(C)) of primary carbides and eutectic colonies. V addition to alloy A can slightly increase the hardness of primary carbides varying from 1503 +/- 17 to 1551 +/- 13 HV but slightly decreases the K(C) value of primary carbides ranging from 3.80 +/- 0.15 to 3.64 +/- 0.14 MPa m(1/2). Mo addition to alloy B can increase the K(C) value of primary carbides ranging from 2.35 +/- 0.11 to 2.67 +/- 0.08 MPa m(1/2). Ni addition to alloy B can decrease the hardness of eutectic colonies varying from 769 +/- 9 to 608 +/- 13 HV. Maximum hardness was obtained in the coated surface of alloy B due to the formation of large amounts of primary M(7)C(3) carbides. (C) 2010 Elsevier B.V. All rights reserved.
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2010.03.127
Appears in Collections:材料科學與工程學系

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