Surface nanocrystallization of iron induced by ultrasonic shot peening

被引：465

作者：

Tao, NR

Sui, ML

Lu, J

Lu, K ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab RSA, Shenyang 110015, Peoples R China

[2] Chinese Acad Sci, Inst Met Res, Lab Atom Imaging, Shenyang 110015, Peoples R China

[3] Northeastern Univ, Dept Mat Sci & Engn, Shenyang 110006, Peoples R China

[4] Univ Technol Troyes, LASMIS, F-10000 Troyes, France

来源：

NANOSTRUCTURED MATERIALS | 1999年 / 11卷 / 04期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/S0965-9773(99)00324-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A nanocrystalline surface layer was fabricated on a pure Fe plate by using an ultrasonic shot peening (USSP) technique. The USSP induced surface nanocrystallization products were characterized by means of X-ray diffraction (XRD) and transmission electron microscope (TEM). Experimental evidences showed that after USSP treatments, the initial coarse-grained structure in the surface layer was refined into equiaxed ultrafine grains (about 10nm) with random crystallographic orientations. The grain refinement mechanism during USSP treatments is discussed. (C)1999 Acta Metallurgica Inc.

引用

页码：433 / 440

页数：8

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