Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 10    No. 5    October 2000

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Feature of flow stress of aluminum sheet used for
can during hot compression①
FU Gao-sheng(傅高升)1,2, QIAN Kuang-wu(钱匡武)1,2,
CHEN Wen-zhe(陈文哲)1, KANG Ji-xing(康积行)1

1. Department Mechanical and Engineering, Fuzhou University, Fuzhou 350002, P.R.China;
2. Department of Materials Science and Engineering,
Central South University of Technology, Changsha 410083, P.R.China

Abstract:The flow stress feature of aluminum sheet used for pressure can during plastic deformation at elevated temperature was studied by isothermal compression test using Gleeble 1 500 dynamic materials testing machine. The experimental results show that the steady state deformation is remarkable when the material is deformed in the temperature range of 350~500℃at strain rates within the range of 10-2~10.0s-1. The material is sensitive to positive strain rate. A hyperbolic sine relationship is found to correlate well the flow stress with the strain rate, and an Arrhenius relationship with the temperature. Semi-empirical constitutive equations of the flow stress are derived from all experimental data for tested material during plastic deformation at elevated temperature by polyelement linear regression analysis.

 

Key words: aluminum sheet used for can; high temperature plastic deformation; compression; flow stress

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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