Neutron diffraction study of extruded magnesium during cyclic and elevated temperature loading

E. C. Oliver; M. R. Daymond; P. J. Withers

Neutron diffraction study of extruded magnesium during cyclic and elevated temperature loading

E. C. Oliver, M. R. Daymond, P. J. Withers

Research output: Chapter in Book/Conference proceeding › Chapter

Abstract

Neutron diffraction has been used to study the progress of deformation twinning and intergranular strain evolution in extruded magnesium during cyclic and monotonic loading at two temperatures. Differences in the intergranular strains generated during tensile and compressive tests are attributed to the operation of twinning in compression. Twinning activity is reduced relative to slip at higher temperature, leading to greater similarities between tension and compression. During cyclic loading, a distinct Bauschinger effect is observed after each compressive loading stage. The origin of this effect is identified as me reversal of twinning during unloading and subsequent tensile loading.

Original language	English
Title of host publication	Materials Science Forum\|Mater Sci Forum
Pages	257-262
Number of pages	5
Volume	490-491
Publication status	Published - 2005
Event	7th International Conference on Residual Stresses, ICRS-7 - Xi'an Duration: 1 Jul 2005 → … http://<Go to ISI>://000230305200061

Publication series

Name	Materials Science Forum

Other

Other	7th International Conference on Residual Stresses, ICRS-7
City	Xi'an
Period	1/07/05 → …
Internet address	http://<Go to ISI>://000230305200061

Keywords

Intergranular stress
Magnesium
Plasticity
Twinning

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title = "Neutron diffraction study of extruded magnesium during cyclic and elevated temperature loading",

abstract = "Neutron diffraction has been used to study the progress of deformation twinning and intergranular strain evolution in extruded magnesium during cyclic and monotonic loading at two temperatures. Differences in the intergranular strains generated during tensile and compressive tests are attributed to the operation of twinning in compression. Twinning activity is reduced relative to slip at higher temperature, leading to greater similarities between tension and compression. During cyclic loading, a distinct Bauschinger effect is observed after each compressive loading stage. The origin of this effect is identified as me reversal of twinning during unloading and subsequent tensile loading.",

keywords = "Intergranular stress, Magnesium, Plasticity, Twinning",

author = "Oliver, {E. C.} and Daymond, {M. R.} and Withers, {P. J.}",

year = "2005",

language = "English",

volume = "490-491",

series = "Materials Science Forum",

pages = "257--262",

booktitle = "Materials Science Forum|Mater Sci Forum",

note = "7th International Conference on Residual Stresses, ICRS-7 ; Conference date: 01-07-2005",

url = "http://<Go to ISI>://000230305200061",

}

Oliver, EC, Daymond, MR & Withers, PJ 2005, Neutron diffraction study of extruded magnesium during cyclic and elevated temperature loading. in Materials Science Forum|Mater Sci Forum. vol. 490-491, Materials Science Forum, pp. 257-262, 7th International Conference on Residual Stresses, ICRS-7, Xi'an, 1/07/05. <http://<Go to ISI>://000230305200047>

TY - CHAP

T1 - Neutron diffraction study of extruded magnesium during cyclic and elevated temperature loading

AU - Oliver, E. C.

AU - Daymond, M. R.

AU - Withers, P. J.

PY - 2005

Y1 - 2005

N2 - Neutron diffraction has been used to study the progress of deformation twinning and intergranular strain evolution in extruded magnesium during cyclic and monotonic loading at two temperatures. Differences in the intergranular strains generated during tensile and compressive tests are attributed to the operation of twinning in compression. Twinning activity is reduced relative to slip at higher temperature, leading to greater similarities between tension and compression. During cyclic loading, a distinct Bauschinger effect is observed after each compressive loading stage. The origin of this effect is identified as me reversal of twinning during unloading and subsequent tensile loading.

AB - Neutron diffraction has been used to study the progress of deformation twinning and intergranular strain evolution in extruded magnesium during cyclic and monotonic loading at two temperatures. Differences in the intergranular strains generated during tensile and compressive tests are attributed to the operation of twinning in compression. Twinning activity is reduced relative to slip at higher temperature, leading to greater similarities between tension and compression. During cyclic loading, a distinct Bauschinger effect is observed after each compressive loading stage. The origin of this effect is identified as me reversal of twinning during unloading and subsequent tensile loading.

KW - Intergranular stress

KW - Magnesium

KW - Plasticity

KW - Twinning

M3 - Chapter

VL - 490-491

T3 - Materials Science Forum

SP - 257

EP - 262

BT - Materials Science Forum|Mater Sci Forum

T2 - 7th International Conference on Residual Stresses, ICRS-7

Y2 - 1 July 2005

ER -

Neutron diffraction study of extruded magnesium during cyclic and elevated temperature loading

Abstract

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Keywords

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