Paper Title:
Size Effect on Micro Tensile Test of Copper
  Abstract

There has been a significant research interest in metal micro-forming for the last ten years. However, neither a methodology nor an exact micro mechanical property has been well determined. Hence, several experiments are carried out in this research to point out the influence of “size effect”. Based on the comparison between the experimental data and relevant parameters, the material characteristics in micro scale can be found. In order to find the mechanical properties in micro scale, this study shows the effect of specimen size and grain size on the micro tensile test of copper material. Firstly, five copper micro-sheets with different thicknesses have been chosen as experimental materials. Since the minimum standard test piece formulated in ASTM is still too big for this micro tensile test, this study decided to shrink the sample size of specimen shape to 1/2 . Then the flow stress decreases with decreasing specimen size. This way is able to get the important factor which influence the flow stress on the micro tensile test. Secondly, these samples of different grain sizes are made by heat treatment. Then these samples of different grain sizes are used to conduct the experiment. According to the experimental result, the change of flow stress, which is influenced by various grain sizes, can be found. Finally, the change in the mechanical behavior between specimen size and grain size is obtained.

  Info
Periodical
Advanced Materials Research (Volumes 264-265)
Edited by
M.S.J. Hashmi, S. Mridha and S. Naher
Pages
108-113
DOI
10.4028/www.scientific.net/AMR.264-265.108
Citation
Y. M. Huang, Y. M. Chang, "Size Effect on Micro Tensile Test of Copper", Advanced Materials Research, Vols. 264-265, pp. 108-113, 2011
Online since
June 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Ping Xing, Juan Li, Lei Zhou, Jian Ming Li, Nan Yuan Qiu
Abstract:The characters of metal oxide gas sensing nano-thin films are studied. The formula of the dynamical thickness effect characteristic time is...
1341
Authors: Chang Long Liu, Da Pei Tang
Abstract:Thermal residual stress in diamond film deposited onto Mo substrate was simulated and analyzed comprehensively by using the finite element...
1199
Authors: Mohsen Loh-Mousavi, Amir Masoud Mirhosseini, Ghasem Amirian
Abstract:In recent years, tube hydroforming has been applied in automobile and airplane industries, to decrease weight. In general, the determination...
5
Authors: Xiao Yu Zhang, Yu Jun Zhang, Hong Yu Gong, Yun Na Song
Chapter 12: Chemical Materials and Processes
Abstract:Sodium hexatitanate (Na2O•6TiO2) whiskers with an average diameter and aspect ratio of 1-3 µm and 10-20 respectively...
1339