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Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005508
EISBN: 978-1-62708-197-9
... 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...
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Published: 01 January 2005
Fig. 2 Flow stress curves of typical magnesium forging alloys. (a) Stress strain curve of alloy ZK60. (b) Torsion flow stress (at strain rate of 5 s −1 ) of Alloy AZ31 at various homologous temperatures ( T / T M ). (c) Hot compression flow curves from extruded AZ31B compressed parallel More
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Published: 01 January 2005
Fig. 28 Correlation of torsional flow stress data for a 0.25% C steel using a temperature-compensated strain-rate parameter (the Zener-Hollomon parameter, Z ). Source: Ref 89 More
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Published: 01 January 2005
Fig. 67 Effect of continuous heating or cooling on the steady-state flow stress of vacuum-melted iron. Deformed in torsion at an effective strain rate of 1.5 × 10 −3 s −1 . Source: Ref 128 More
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Published: 01 January 2005
Fig. 68 Effect of increasing or decreasing strain rate on the flow stress of copper deformed in torsion at 750 °C (1380 °F). Source: Ref 129 More
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Published: 01 January 2005
Fig. 3 Hypothetical dependence of (a) flow stress and (b) strain to failure on deformation temperature at three strain rates where ε ˙ 1 < ε ˙ 2 < ε ˙ 3 More
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Published: 01 January 2005
Fig. 4 Flow stress as a function of deformation temperature for an aluminum-magnesium alloy homogenized by different schedules (#1, #2, #3, #4) More
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Published: 01 January 2005
Fig. 6 Flow stress for two versions of a 7xxx aluminum alloy as a function of strain rate at T def = 315 °C (600 °F) More
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Published: 01 January 2005
Fig. 7 (a) Flow stress and (b) strain to failure as a function of homogenization time at 523 °C (975 °F). Deformation temperature is 493 °C (920 °F). More
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Published: 01 January 2005
Fig. 8 (a) Flow stress and (b) strain to failure as a of deformation More
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Published: 01 January 2005
Fig. 9 (a) Equivalent tensile flow stress and (b) strain to failure of as-cast specimens deformed by hot torsion at various temperatures More
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Published: 01 December 2004
Fig. 24 Flow-stress calculations for cold-rolled nickel (99.99%) based on microstructural measurements compared with Vickers hardness and literature data. Source: Ref 15 More
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Published: 01 January 2003
Fig. 13 Effect of grain size on LMIE. Variation of the flow stress of amalgamated zinc polycrystalline specimens, σ fZn , and fracture stress of amalgamated zinc specimens, σ FZn-Hg , as a function of grain size at 298 K More
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Published: 31 December 2017
Fig. 6 Schematic diagram of the relative effects of deformation speed, flow stress, and lubrication on friction and die pressure in hot forging ( Ref 11 ). Die pressure increases with increasing flow stress of the deforming material with increasing strain rate. HERF, high energy rate forming More
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Published: 01 December 1998
Fig. 12 Flow stress versus strain rate for alloy 6061 at three temperatures and a strain rate of 10 s −1 More
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Published: 01 December 1998
Fig. 13 Flow stress versus strain rate for alloys 2014 and 6061 at 370 °C (700 °F) and two different strain rates More
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Published: 01 December 1998
Fig. 19 Effect of forging temperature on flow stress of titanium alloys at 10/s strain rate. (a) α-alloy Ti-8Al-1Mo-1V. (b) α-β alloy Ti-6Al-4V. (c) Metastable β-alloy Ti-10V-2Fe-3Al More
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Published: 01 December 1998
Fig. 20 Effect of three strain rates (0.001, 0.1, and 10/s) on flow stress of three titanium alloys forged at different temperatures. (a) α-alloy Ti-8Al-1Mo-1V at 955 °C (1750 °F). (b) α-β alloy Ti-6Al-4V at 900 °C (1650 °F). (c) Metastable β-alloy Ti-10V-2Fe-3Al at 815 °C (1500 °F) More
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Published: 15 June 2019
Fig. 6 Flow stress versus strain rate for alloy 6061 at three temperatures and a strain rate of 10 s −1 More
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Published: 15 June 2019
Fig. 2 Flow stress for aluminum alloy 6063-O at a strain rate of 0.2%. Source: Ref 2 More