Elastic properties modification in aluminum alloy induced by laser-shock processing

被引：23

作者：

Zhang, YK ^{[1
]}

Zhang, XR

Wang, XD

Zhang, SY

Gao, CY

Zhou, JZ

Yang, JC

Cai, L

机构：

[1] Jiangsu Univ Sci & Technol, Coll Mech Engn, Jiangsu 212013, Peoples R China

[2] Nanjing Univ, State Key Lab Modern Acoust, Nanjing 210093, Peoples R China

[3] Nanjing Univ, Inst Acoust, Nanjing 210093, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2001年 / 297卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

laser-shock processing; laser ultrasonics method; elastic properties; distribution; location measurement; epicenter waveform; time-of-flight;

D O I：

10.1016/S0921-5093(00)01264-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The elastic properties of aluminum alloy 2024-T62 shocked by laser are investigated using a laser ultrasonics method. The results show that the elastic properties modification is distributed within the specimen. The distribution can be fitted by polynomial regression. The elastic constants C-11 and Poisson's ratio nu increase within the shocked area. The relative changes of C-11 and nu can be as high as 40.6 and 24.8%, respectively. The elastic constants C-44 and Young's modulus E can decrease by up to 29 and 25.4%, respectively. The Lame coefficient lambda increases near the center, but decreases at the edge, of the laser-shocked area. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：138 / 143

页数：6

共 19 条

[11] PRELIMINARY INVESTIGATION ON LASER ULTRASONIC NDE OF NANOMETER MATERIALS [J].

ZHANG, XR ;

GAN, CM ;

HUANG, YY ;

XIAN, DC .

JOURNAL DE PHYSIQUE III, 1995, 5 (06) :783-789

[12]

ZHANG XR, 1988, CHINESE PHYSICS LASE, V15, P285

[13]

ZHANG XR, 1997, 3 INT WORKSH ADV SIG

[14]

ZHANG XR, 1987, P CHIN JAP JOINT C U, P455

[15]

ZHANG XR, 1996, MODERN ULTRASONICS P

[16] Study of visual inspection and control methods of effectiveness of laser shock-processing [J].

Zhang, YK ;

Zhang, SY .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1997, 65 (4-5) :419-423

[17]

Zhang YK, 1997, SURF COAT TECH, V92, P104, DOI 10.1016/S0257-8972(97)00009-1

[18] Laser shock-processing for fatigue and fracture resistance [J].

Zhang, YK ;

Zhang, SY ;

Yu, CY ;

Tang, YX ;

Zhang, H ;

Wu, HX ;

Guo, DH ;

Wang, SB ;

Xia, XP ;

Chen, MS ;

Dai, YS .

SCIENCE IN CHINA SERIES E-TECHNOLOGICAL SCIENCES, 1997, 40 (02) :170-177

[19]

ZHANG YK, 1997, CHIN J LASERS B, V6, P81

← 1 2 →