2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 7: Yang Intl. Symp. / Multiscale Material Mechanics
| Editors: | Kongoli F, Aifantis E, Wang H, Zhu T |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 190 pages |
| ISBN: | 978-1-987820-48-5 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Effect of grain size on the n and r value of 3104 aluminum alloy sheet
Ni Tian1; Cunfa Jia1; Hong Ning1; Xin Fang1; Gang Zhao2;1NORTHEASTERN UNIVERSITY, Shenyang, China; 2, Shenyang, China;
Type of Paper: Regular
Id Paper: 301
Topic: 1
Abstract:
The relationship between grain size and n and r value of 3104 aluminum alloy sheet were investigated by tensile test along the different direction, on the basis of gain the 3104 aluminum alloy sheets that texture and configuration of the second-phase particle were almost the same but grain size was significantly different by means of appropriate heat treatment. The results showed that the size and dispersion of the remained constituent and dispersoid, the grain orientation in 3104 aluminum alloy sheet were approximately the same, but the grain size was from 12.65¦Im to 31.63¦Im. The strength of 3104 aluminum alloy sheet reduced slowly at first, and then rapidly as the grain size increased, which satisfied Hall-Petch formula. The n value of 3104 aluminum alloy sheet was increased slowly as the grain size increased from 13.80¦Im to 28.11¦Im, and the n value increased significantly as the grain size exceeded 29.19¦Im. The r value of 3104 aluminum sheet in 3 directions had no apparent variation with the increasing of grain size, which means that the r value was not sensitive to grain size in 3104 aluminum alloy sheet.