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物理学报. 2004, 53(11): 3845-3848.
doi: 10.7498/aps.53.3845.
高压下Co在Zr46.75Ti8.25Cu7.5Ni10Be27.5大块金属玻璃过冷液相区中的扩散
- 收稿日期: 2003-10-14
- 修回日期: 2004-03-23
- 刊出日期: 2004-11-16
English Abstract
Diffusion of Co in Zr＿46.75Ti＿8.25Cu＿7.5Ni＿10Be＿27.5 bulk metallic glass in supercooled liquid region under high pressure
- Received Date:
14 October 2003
- Accepted Date:
23 March 2004
- Published Online:
16 November 2004
Abstract: Diffusion of Co in Zr＿46.75Ti＿8.25Cu＿7.5Ni＿10Be＿27.5 bulk metallic glass under high pressure is investigated in supercooled liquid regio n by ion implantation combined with secondary ion mass spectroscopy.Before impla ntation of Co atoms,the amorphous samples were annealed and relaxed in supercool ed liquid region.Diffusion coefficients of Co at 603K in the relaxed samples are found to increase with increasing pressure.And the activation volume for diffus ion is obtained to be -1.236Ω,where Ω is the mean atomic volume of the alloy.The result shows that diffusion of Co in this case is in an interstitial way.
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