Abstract
The mechanical behaviour of wrought magnesium alloy AZ31 has been characterised by tensile testing at room temperature. Tests were carried out at various strain rates between 0.00003s-1 and 0.01s-1 on material which had been extruded to a bar of approximately 6mm thick, and 80mm wide. Specimens were machined from three orientations relative to the extrusion direction: Parallel, perpendicular, and 45° from the extrusion direction. Significant variations of the properties were observed depending on the extrusion orientation and strain rate. At all strain rates the yield stress declined as the test orientation was rotated away from the extrusion direction. Parallel to the extrusion direction, the yield stress was found to increases markedly with increasing strain rate, whereas at 45° and 90° a lesser influence of strain rate was observed. The work hardening exponent was also influenced by the test orientation. Metallographie studies revealed a microstructure which was predominantly recrystallized: However, some large elongated grains were observed aligned with the extrusion direction, and structure-property correlations were inferred from these observations.
| Original language | English |
|---|---|
| Pages (from-to) | 3605-3610 |
| Number of pages | 6 |
| Journal | Materials Science Forum |
| Volume | 426-432 |
| Issue number | 4 |
| Publication status | Published - 18 Jul 2003 |
| Event | Thermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, Spain Duration: 7 Jul 2003 → 11 Jul 2003 |
Keywords
- Extrusion
- Strain Rate
- Tensile Test
- Texture
- Wrought Magnesium Alloys
Cite this
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Anisotropy of tensile properties of extruded magnesium alloy AZ31. / Xiong, F.; Davies, C. H.J.
In: Materials Science Forum, Vol. 426-432, No. 4, 18.07.2003, p. 3605-3610.Research output: Contribution to journal › Conference article › Other
TY - JOUR
T1 - Anisotropy of tensile properties of extruded magnesium alloy AZ31
AU - Xiong, F.
AU - Davies, C. H.J.
PY - 2003/7/18
Y1 - 2003/7/18
N2 - The mechanical behaviour of wrought magnesium alloy AZ31 has been characterised by tensile testing at room temperature. Tests were carried out at various strain rates between 0.00003s-1 and 0.01s-1 on material which had been extruded to a bar of approximately 6mm thick, and 80mm wide. Specimens were machined from three orientations relative to the extrusion direction: Parallel, perpendicular, and 45° from the extrusion direction. Significant variations of the properties were observed depending on the extrusion orientation and strain rate. At all strain rates the yield stress declined as the test orientation was rotated away from the extrusion direction. Parallel to the extrusion direction, the yield stress was found to increases markedly with increasing strain rate, whereas at 45° and 90° a lesser influence of strain rate was observed. The work hardening exponent was also influenced by the test orientation. Metallographie studies revealed a microstructure which was predominantly recrystallized: However, some large elongated grains were observed aligned with the extrusion direction, and structure-property correlations were inferred from these observations.
AB - The mechanical behaviour of wrought magnesium alloy AZ31 has been characterised by tensile testing at room temperature. Tests were carried out at various strain rates between 0.00003s-1 and 0.01s-1 on material which had been extruded to a bar of approximately 6mm thick, and 80mm wide. Specimens were machined from three orientations relative to the extrusion direction: Parallel, perpendicular, and 45° from the extrusion direction. Significant variations of the properties were observed depending on the extrusion orientation and strain rate. At all strain rates the yield stress declined as the test orientation was rotated away from the extrusion direction. Parallel to the extrusion direction, the yield stress was found to increases markedly with increasing strain rate, whereas at 45° and 90° a lesser influence of strain rate was observed. The work hardening exponent was also influenced by the test orientation. Metallographie studies revealed a microstructure which was predominantly recrystallized: However, some large elongated grains were observed aligned with the extrusion direction, and structure-property correlations were inferred from these observations.
KW - Extrusion
KW - Strain Rate
KW - Tensile Test
KW - Texture
KW - Wrought Magnesium Alloys
UR - http://www.scopus.com/inward/record.url?scp=0037999786&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:0037999786
VL - 426-432
SP - 3605
EP - 3610
JO - Materials Science Forum
JF - Materials Science Forum
SN - 0255-5476
IS - 4
ER -