Effect of ultrasonic nano-crystalline surface modification on the microstructural evolution and mechanical properties of Al5052 alloy

被引：16

作者：

Ahn, Deokgi ^{[1
]}

He, Yinsheng ^{[1
]}

Wan, Zhixin ^{[1
]}

Cho, In Shik ^{[2
]}

Lee, Chang Soon ^{[2
]}

Park, In Gyu ^{[2
]}

Pyoun, Young Shik ^{[3
]}

Dong, Jiling ^{[1
,4
]}

Shin, Keesam ^{[1
]}

机构：

[1] Changwon Natl Univ, Sch Nano & Adv Mat Engn, Chang Won 641773, South Korea

[2] Sun Moon Univ, Dept Hybrid Engn, Asan 336708, South Korea

[3] Sun Moon Univ, Dept Mech Engn, Asan 336708, South Korea

[4] Chongqing Univ Sci & Technol, Sch Met & Mat Engn, Chongqing 401331, Peoples R China

来源：

SURFACE AND INTERFACE ANALYSIS | 2012年 / 44卷 / 11-12期

关键词：

Al5052; surface modification; UNSM; microstructure; EBSD; TEM;

D O I：

10.1002/sia.4959

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Surface modification of Al5052 alloy was carried out by an ultrasonic nano-crystalline surface modification (UNSM) technology at various processing conditions. The effect of UNSM processing parameters (amplitude and ball size) on the evolution of microstructure and mechanical properties was investigated. Analyses using electron microscopy, microhardness and wear test showed an obvious grain refinement up to 200 mu m in depth from the surface. The hardness of the UNSM-treated surface increased by approximately 50%, resulting in approximately 48% increase of wear resistance. The effect of ball size in UNSM was predominant on the grain refinement. Copyright (C) 2012 John Wiley & Sons, Ltd.

引用

页码：1415 / 1417

页数：3

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