Anomalous ion accelerated bulk diffusion of interstitial nitrogen - art. no. 065901

被引：49
|
作者：
Abrasonis, G
Möller, W
Ma, XX
机构：
[1] Forschungszentrum Rossendorf, Inst Ion Beam Phys & Mat Res, D-01314 Dresden, Germany
[2] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.96.065901
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Interstitial N diffusion under low energy (similar to 700 eV) Ar+ bombardment at 673 K in ion beam nitrided austenitic stainless steel is investigated. Ar+ ion bombardment increases the N mobility in depths far beyond the ion penetration depth, resulting in an increased broadening of the N depth profile as a function of Ar+ flux. This effect cannot be explained by any established mechanism of radiation-enhanced diffusion. An explanation based on quasiparticle-enhanced mobility is proposed.
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页数：4
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