Variable lattice expansion in martensitic stainless steel after nitrogen ion implantation

被引：43
|
作者：
Manova, D
Thorwarth, G
Mändl, S
Neumann, H
Stritzker, B
Rauschenbach, B
机构：
[1] Leibniz Inst Oberflachenmodifizierung, D-04303 Leipzig, Germany
[2] Univ Augsburg, Inst Experimentalphys 4, D-86135 Augsburg, Germany
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2006年 / 242卷 / 1-2期
关键词：
PIII; expanded martensite; phase formation; XRD; GDOS;
D O I：
10.1016/j.nimb.2005.08.059
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Similar to expanded austenite, expanded martensite could be formed in the surface region of martensitic stainless steel after energetic nitrogen ion implantation at elevated temperatures up to 400 degrees C, whereas a higher temperature of 420 degrees C leads to CrN precipitates in the steel matrix. The influence of the process conditions and the alloy composition on the lattice expansion is investigated. A variable, anisotropic lattice expansion normal to the surface of up to 3.5% was observed, generally larger for (110) planes than for (200) planes. The additional formation of a large number of point defects for some process conditions can be inferred from the missing correlation between the relative X-ray intensity and the layer thickness. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：285 / 288
页数：4
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