Strain rate-dependent high temperature compressive deformation characteristics of ultrafine-grained pure aluminum produced by ECAP

This article presents a review of the strain rate-dependent mechanical behavior of aluminum and its commercial alloys. The importance of strain rate sensitivity (SRS) stems from its relation with ductility and formability. Plastic deformation is stable and localization less likely in alloys with higher SRS. After discussing the basic formulation used to interpret experimental data, the methods used to measure the SRS parameter are presented. This is followed by a brief review of the main mechanisms that render the flow stress sensitive to the deformation rate, including mechanisms leading to positive and negative SRS. The generic dependence of the SRS parameter on the strain, temperature, and strain rate are further presented using data for pure Al. The effect of alloying is analyzed in the context of solid solutions and precipitated commercial alloys. Results on solid solutions are discussed separately at low and elevated temperatures in order to evidence the role of solute diffusion on SRS. This article ends with a brief discussion of the grain size dependence of SRS, with emphasis on recent efforts to produce nanocrystalline and ultrafine-grained materials by severe plastic deformation.

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Strain-rate dependent fatigue behavior of 316LN stainless steel in high-temperature water

Journal of Nuclear Materials ◽

10.1016/j.jnucmat.2017.03.040 ◽

2017 ◽

Vol 489 ◽

pp. 33-41 ◽

Cited By ~ 15

Author(s):

Jibo Tan ◽

Xinqiang Wu ◽

En-Hou Han ◽

Wei Ke ◽

Xiang Wang ◽

...

Keyword(s):

Stainless Steel ◽

High Temperature ◽

Strain Rate ◽

Fatigue Behavior ◽

316Ln Stainless Steel ◽

Rate Dependent ◽

High Temperature Water ◽

Temperature Water

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Strain rate-dependent compressive deformation and failure behavior of porous SiC/Ti-based metallic glass composite

Materials Science and Engineering A ◽

10.1016/j.msea.2014.04.097 ◽

2014 ◽

Vol 609 ◽

pp. 53-59 ◽

Cited By ~ 10

Author(s):

B.P. Wang ◽

L. Wang ◽

Y.F. Xue ◽

S.Y. Wang ◽

Y.Q. Wang ◽

...

Keyword(s):

Metallic Glass ◽

Strain Rate ◽

Compressive Deformation ◽

Failure Behavior ◽

Glass Composite ◽

Deformation And Failure ◽

Rate Dependent ◽

Porous Sic

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EFFECT OF STRAIN RATE ON THE HIGH-TEMPERATURE COMPRESSIVE DEFORMATION BEHAVIOR OF ULTRAFINE-GRAINED COPPER

International Journal of Modern Physics B ◽

10.1142/s0217979209061585 ◽

2009 ◽

Vol 23 (06n07) ◽

pp. 1758-1763 ◽

Cited By ~ 6

Author(s):

XIAO-WU LI ◽

QING-WEI JIANG ◽

YIN LIU ◽

YAO WANG

Keyword(s):

High Temperature ◽

Strain Rate ◽

High Temperature Deformation ◽

Temperature Deformation ◽

Strain Rates ◽

Obvious Effect ◽

Degree Of Deformation ◽

Damage Behavior ◽

Angular Pressing ◽

Ultrafine Grained

The high-temperature deformation and damage behavior of ultrafine-grained (UFG) Cu produced by equal channel angular pressing (ECAP) were investigated and compared at two strain rates of 10-2 s-1 and 10-3 s-1. It is found that the strain rate has an obvious effect on the deformation and damage behavior of UFG Cu , especially at the testing temperatures near and above recrystallization. In general, the lower the strain rate, more universally grain coarsening takes place, the lower the yield stress and steady flow stress are, and more aggravated the degree of deformation damage becomes.

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