XRD Characterization of Microstructural Evolution During Mechanical Alloying of W-20 wt%Mo

被引：18
|
作者：
Srivastav, Ajeet K. [1 ]
Panindre, Anup M. [2 ]
Murty, B. S. [1 ]
机构：
[1] Indian Inst Technol, Dept Met & Mat Engn, Madras 600036, Tamil Nadu, India
[2] Natl Inst Technol Jamshedpur, Dept Met & Mat Engn, Jharkhand 831014, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2013年 / 66卷 / 04期
关键词：
Tungsten; Molybdenum; Mechanical alloying; X-ray diffraction line profile analysis; X-RAY-DIFFRACTION; TUNGSTEN; METALS; BEHAVIOR;
D O I：
10.1007/s12666-013-0269-3
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The present paper reports a study on the microstructural evolution during mechanical alloying of W-20wt%Mo using XRD line profile analysis. The W-20wt%Mo powder blends were ball milled using Fritsch Pulverisette P-5 high energy ball mill for varying milling time (0, 5, 10, 15, 20 h) at 300 rpm with 10:1 and 2:1 ball to powder weight ratio. The crystallite size and lattice strain were calculated using Langford method ('average' Williamson-Hall Plot). The precision lattice parameter calculation was done using Nelson-Riley method. The effect of milling on alloying behaviour has been investigated using change in relative integrated intensity ratios (I (Mo) /I (W/W(Mo))) of (211) XRD peak. There was complete alloying in case of 10:1 ball to powder weight ratio, whereas half of the Mo (similar to 10 % Mo) was alloyed with 2:1 ball to powder weight ratio. The paper also discusses the applicability of the criteria based on lattice parameter change (peak shift) for alloying behaviour during mechanical milling.
引用
收藏
页码：409 / 414
页数：6
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