Flow softening during hot working of Ti-6Al-4V with a lamellar colony microstructure

被引：131

作者：

Miller, RM ^{[1
]}

Bieler, TR

Semiatin, SL

机构：

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

[2] Michigan State Univ, E Lansing, MI 48824 USA

来源：

SCRIPTA MATERIALIA | 1999年 / 40卷 / 12期

关键词：

D O I：

10.1016/S1359-6462(99)00061-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The crystallographic texture changes are determined to explain the flow observations of titanium alloys. Load-stroke data from the compression tests were corrected to account for load train deflection and then converted to true stress-true strain curves assuming uniform constant volume deformation, an approach validated by finite element method simulation of the isothermal, hot compression test performed with the DEFORM computer code. The principal results consist of the constitutive behavior of the Ti-6Al-4V alloy with the colony microstructure in compression versus tension, estimates of flow softening/hardening from polycrystalline plasticity calculations, and selected microstructure observations.

引用

页码：1387 / 1393

页数：7