Structure of the Near-Surface Layer of NiTi on the Meso-and Microscale Levels after Ion-Beam Surface Treatment

被引：1

作者：

Meisner, L. L. ^{[1
,2
]}

Poletika, T. M. ^{[1
]}

Meisner, S. N. ^{[1
,2
,3
]}

Tverdichlebova, A. V. ^{[1
]}

Girsova, S. L. ^{[1
]}

Shulepov, I. A. ^{[3
]}

机构：

[1] Inst Strength Phys & Mat Sci SB RAS, Tomsk 634055, Russia

[2] Natl Res Tomsk State Univ, Tomsk 634050, Russia

[3] Natl Res Tomsk Polytechn Univ, Tomsk 634050, Russia

来源：

INTERNATIONAL CONFERENCE ON PHYSICAL MESOMECHANICS OF MULTILEVEL SYSTEMS 2014 | 2014年 / 1623卷

关键词：

NiTi; ion beams; surface layers; martensitic transformations; fragmentation; TRANSFORMATION;

D O I：

10.1063/1.4898970

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Using the EBSD, SEM and TEM methods, the structure of surface layer of polycrystalline NiTi alloy samples was examined after the modification of material surface by the pulsed action of mean-energy silicon ion beam. It was found that the ion beam treatment would cause grain fragmentation of the near-surface layer to a depth 5 divided by 50 mu m; a higher extent of fragmentation was observed in grains whose close-packed planes were oriented approximately in the same direction as the ion beam was. The effect of high-intensity ion beam treatment on the anisotropic behavior of polycrystalline NiTi alloy and the mechanisms involved were also examined.

引用

页码：415 / 418

页数：4

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