Vickers and Knoop Micro-hardness Behavior of Coarse-and Ultrafine-grained Titanium

被引：0
|
作者：
K.P.Sanosh [1 ]
A.Balakrishnan [2 ]
L.Francis [3 ]
T.N.Kim [1 ]
机构：
[1] Department of Information and Electronic Materials Engineering,College of Engineering,Paichai University
[2] Laboratoire SIMAP,GPM2 Grenoble-INP,UJF,CNRS 101 Rue de la Physique,BP46 38402 Saint Martin d'He' res Cedex,France
[3] University of Genova,Department of Chemistry and Industrial Chemistry
来源：
JournalofMaterialsScience&Technology | 2010年 / 26卷 / 10期
关键词：
Vickers; Knoop; Hardness; Ultrafine-grained; Titanium;
D O I：
暂无
中图分类号：
TG146.23 [];
学科分类号：
080502 ;
摘要：
The present study focuses on the relationship of hardness with grain size for commercially pure titanium (CpTi) and ultra fine grained titanium (UFG-Ti) produced by equal channel angular process (ECAP) of Cp-Ti).Vickers and Knoop indentations of UFG-Ti at different loads was ～2.5 times harder than those of Cp-Ti.Xray diffraction (XRD) analysis showed peak broadening in UFG-Ti due to reduced grain size and micro-lattice strains.Scanning electron microscopy (SEM) revealed that ECAP had reduced the grain size of Cp-Ti by ～10 times.Weibull statistics showed UFG-Ti with lower dispersion in hardness values compare to Cp-Ti indicating a more uniform microstructure.
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页码：904 / 907
页数：4
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