GRAIN REFINEMENT IN Ti-6Al-4V ALLOY DURING THERMO-MECHANICAL PROCESSING AND INVESTIGATION OF FLOW PROPERTIES

被引：0

作者：

Sheed, Digvijay J. ^{[1
]}

Kashyap, Bhagawati P. ^{[2
]}

Singh, Rajkumar P. ^{[1
]}

机构：

[1] Bharat Forge Ltd, Pune 411036, Maharashtra, India

[2] Indian Inst Technol, Dept Met Engn & Mat Sci, Bombay 400076, Maharashtra, India

来源：

TMS 2014 SUPPLEMENTAL PROCEEDINGS | 2014年

关键词：

Grain refinement; Thermo-mechanical processing; Superplasticity; Ti-6Al-4V alloy;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The flow properties of thermo-mechanically processed Ti-6Al-4V alloy were investigated in this study. Two samples from as received Ti-6Al-4V alloy plate with consisting coarse beta grains of similar to 170 mu m size were rolled at 940 degrees C and 550 degrees C respectively. In hot rolled (940 degrees C) sample fully equiaxed microstructure with average grain size similar to 2.3 mu m was produced. In warm rolled (550 degrees C) sample, heterogeneous microstructure was produced, which consists of elongated and partially equiaxed grains. To investigate flow properties of hot and warm rolled Ti-6Al-4V alloy samples, differential strain rate tests were performed. Strain rate sensitivity (m) values and apparent activation energy (Q) for were calculated for both hot and warm rolled samples.

引用

页码：93 / 100

页数：8

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