Grain refinement vs. crystallographic texture: Mechanical anisotropy in a magnesium alloy

Foley, D.C.; Al-Maharbi, Majid; Hartwig, K. T.; Караман, И.; Kecskes, Laszlo J.; Mathaudhu, Suveen

doi:10.1016/j.scriptamat.2010.09.042

Cited by 99 publications

(33 citation statements)

References 20 publications

(38 reference statements)

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“…Both for as-spray-ECAP and as-cast-ECAP samples, the highest HV value appeared in the FD, followed by samples in ED and LD sequentially. It is worth noting that for the three directions, the results of HV values presented here show identical trend with the mechanical properties of AZ31B alloy [4]. Figure 2 shows the true stress-true strain curves of tensile test.…”

Section: Resultssupporting

confidence: 67%

Enhanced Strength and Ductility of AZ80 Magnesium Alloys by Spray Forming and ECAP Techniques

Tang¹,

Zhao²,

Исламгалиев³

et al. 2016

Kms

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Fast spray forming technology followed by equal channel angular pressing (ECAP) was employed to obtain a specific microstructure: separated coarse magnesium grains surrounded by deformation networks. The deformation layer consisted of ultrafine grained magnesium with an average grain size of 0.6 m and ellipsoidal shaped -Mg 17 Al 12 particles with a size of 200-300 nm and a volume fraction of 13%. Mechanical tensile test demonstrates the advantage of the specific structure: a yield strength of 235MPa combined with an elongation to failure of 14%.

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Section: Resultssupporting

confidence: 67%

Enhanced Strength and Ductility of AZ80 Magnesium Alloys by Spray Forming and ECAP Techniques

Tang¹,

Zhao²,

Исламгалиев³

et al. 2016

Kms

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“…Moreover, the "as-rolled" sample where TD is parallel to RD presents the lowest values of Rp 02 and UTS. Such strong anisotropy of mechanical properties for magnesium alloys has been previously reported [19,20]. Partially, the reason for this is the formation of very strong textures that reduce the activation of non-basal slip systems and twinning [6-12, 19, 20].…”

Section: Fig 4 Work-hardening Curves From Tensile Tests Of Investigmentioning

confidence: 74%

Mechanical Properties and Structure Evolution of the Az91 Magnesium Alloy After Hot Rolling and Annealing

Sułkowski

Boczkal

2015

mafe

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Mechanical properties and structure evolution of the AZ91 magnesium alloy after hot rolling and annealing Właściwości mechaniczne oraz struktura stopu AZ91 po walcowaniu na gorąco i wyżarzaniu AbstractThe AZ91 magnesium alloy was processed up to 87.5% of total thickness reduction in several thermodynamic routes, consisted of hot rolling and intermediate annealing. The hot-rolling process was performed at a high strain rate equal to 1.6 s −1 and at a temperature of 430°C. The intermediate annealing was performed at 430°C for 15 minutes after each route. It was found that, during hot rolling, the hardness of the material increased from 32 HV to 40 HV, and the structure investigations showed a huge amount of twins formed inside the grains (which were not observed after annealing). Tensile tests have shown strong anisotropy in mechanical properties of the "as-rolled" samples dependent on the orientation between tension direction (TD) and rolling direction (RD). The samples with TD perpendicular to RD proved higher ultimate tensile strength (UTS) and (on the other hand) worse plastic properties as compared to the samples with TD parallel to RD. The annealing has an effect on the reduction of mechanical properties anisotropy. X-ray investigations have shown texture changes from the basal type with the additional (0001) <1120> component for "as-rolled" samples to the texture with the main (0001) <1010> component for annealed samples. The texture changes had a great impact on the anisotropy of mechanical properties of the investigated AZ91 magnesium alloy.

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“…[1] There are many promising developments in new alloy design. [2,3] In addition, several recent studies have focused on improving conventional alloys by various thermo-mechanical processing methods.…”

Section: Introductionmentioning

confidence: 99%

Microstructure‐Property Relationship for Friction Stir Processed Magnesium Alloy

et al. 2013

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Friction stir processing (FSP) of Mg based AE42 alloy was performed under single pass as well as double pass conditions. The evolution of microstructure was investigated using electron back scatter diffraction (EBSD) analysis. EBSD revealed that the grain size and texture varies within the nugget zone of friction stir processed region. The variation of mechanical properties across the nugget region was evaluated using nanoindentation. Hardness and Young's modulus was found to increase along the depth of the friction stir processed specimen. This was attributed to a finer grain structure with increasing depth. The friction stir processed specimen showed higher tendency toward strain hardening compared to as-cast alloy. Understanding microstructure-property relationship paves the way for optimization of FSP conditions and development of advanced functional Mg alloys.

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Grain refinement vs. crystallographic texture: Mechanical anisotropy in a magnesium alloy

Cited by 99 publications

References 20 publications

Enhanced Strength and Ductility of AZ80 Magnesium Alloys by Spray Forming and ECAP Techniques

Enhanced Strength and Ductility of AZ80 Magnesium Alloys by Spray Forming and ECAP Techniques

Mechanical Properties and Structure Evolution of the Az91 Magnesium Alloy After Hot Rolling and Annealing

Microstructure‐Property Relationship for Friction Stir Processed Magnesium Alloy

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