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ASM Handbook

Metals Process Simulation

Edited by
D.U. Furrer
D.U. Furrer
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S.L. Semiatin
S.L. Semiatin
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ASM International
Volume
22B
ISBN electronic:
978-1-62708-197-9
Publication date:
2010
Book Chapter

Measurement and Interpretation of Flow Stress Data for the Simulation of Metal-Forming Processes

By
S.L. Semiatin
S.L. Semiatin
Air Force Research Laboratory
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T. Altan
T. Altan
The Ohio State University
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Published:
2010
Page range:
46 - 66
Publication history
March 04, 2010

Abstract

This article describes the most commonly used test methods for determining flow stress in metal-forming processes. The methods include tension, ring, uniform compression, plane-strain compression, torsion, split-Hopkinson bar, and indentation tests. The article discusses the effect of deformation heating on flow stress. It provides metallurgical considerations at hot working temperatures and presents flow curves at conventional metalworking strain rates. The article describes the effect of microstructural scale, crystallographic texture, and equiaxed phases on flow stress at hot working temperatures. It tabulates a summary of certain values describing the flow stress-strain rate relation for steels, aluminum alloys, copper alloys, titanium alloys, and other metals at various temperatures.

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S.L. Semiatin, T. Altan, 2010. "Measurement and Interpretation of Flow Stress Data for the Simulation of Metal-Forming Processes", Metals Process Simulation, D.U. Furrer, S.L. Semiatin

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