Failure modes during equal channel angular extrusion of aluminum alloy 2024

被引：17

作者：

Fagin, PN ^{[1
]}

Brown, JO

Brown, TM

Jata, KV

Semiatin, SL

机构：

[1] Universal Energy Syst Inc, Dayton, OH 45432 USA

[2] USAF, Res Lab, Mat & Mfg Directorate, AFRL,MLLM, Wright Patterson AFB, OH 45433 USA

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2001年 / 32卷 / 07期

关键词：

Compression testing - Crack initiation - Deformation - Fracture - Metal extrusion - Plastic flow - Strain rate - Stresses - Tensile testing;

D O I：

10.1007/s11661-001-0165-z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The competition between flow-localization-controlled and fracture-controlled failure during equal channel angular extrusion (ECAE) was studied. Aluminum-alloy 2024 in the T851 temper was used. To establish the plastic flow and fracture behavior of the program material, uniaxial compression and tension tests were conducted at room temperature. The results indicate that two distinct types of failure occur during ECAE, the alpha parameter in shear and the critical tensile damage factor from the Cockcroft-and-Latham criterion.

引用

页码：1869 / 1871

页数：3

共 9 条

[1]

COCKCROFT MG, 1968, J I MET, V96, P33

[2] Finite-element modeling of nonisothermal equal-channel angular extrusion [J].