Please use this identifier to cite or link to this item:
|標題:||Hardness, toughness and cracking systems of primary (Cr,Fe)(23)C-6 and (Cr,Fe)(7)C-3 carbides in high-carbon Cr-based alloys by indentation||作者:||Lin, C.M.
|關鍵字:||Cr-based alloys;Carbides;Indentation technique;Palmqvist cracks;Mechanical properties;fracture-toughness;vickers indentation;hardfacing alloys;ceramics;silicon;glass;microstructure;brittleness;model;wear||Project:||Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing||期刊/報告no：:||Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, Volume 527, Issue 18-19, Page(s) 5038-5043.||摘要:||
The current investigation evaluates the hardness, indentation toughness (K-C) and cracking systems of primary carbides in high-carbon Cr-based alloys using the indentation technique and compares the results calculated from different model equations. The primary carbides in high-carbon Cr-based alloys are (Cr,Fe)(23)C-6 and (Cr,Fe)(7)C-3 carbides. The results reveal that K-C evaluation of primary carbides by the Vickers indentation method strongly depends on the selection of K-C equations, crack systems and crack length. The cracking systems of primary carbides shown by the polishing procedure are Palmqvist cracks. Niihara's equation with the Palmqvist crack is most appropriate to evaluate the K-C of primary carbides, after experimentally assessing its applicability. The K-C values of primary (Cr,Fe)(23)C-6 and (Cr,Fe)(7)C-3 carbides are 3.8 +/- 0.2 and 2.4 +/- 0.1 MPa m(1/2). (C) 2010 Elsevier B.V. All rights reserved.
|Appears in Collections:||期刊論文|
Show full item record
TAIR Related Article
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.