Influence of Equal Channel Angular Pressing Passes on the Microstructures and Tensile Properties of Mg-8Sn-6Zn-2Al Alloy

Cheng, Weili; Tian, Liang; Ma, Shuang; Bai, Yang; Wang, Hongxia

doi:10.3390/ma10070708

Cited by 25 publications

(14 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…σY, σ o , k y , and d are the yield strength, a materials constant for the starting stress for dislocation movement, strengthening coefficient, and average grain size, respectively. Many of the previous researches also confirm the validity of Hall–Petch equation for the metals and alloys processed by SPD methods with ultrafine grains ranging from 1 µm to 100 nm [39,40,41,42,43,44].…”

Section: Resultsmentioning

confidence: 68%

Microstructure, Texture, Electrical and Mechanical Properties of AA-6063 Processed by Multi Directional Forging

et al. 2018

View full text Add to dashboard Cite

In current research, the effect of the multi-directional forging (MDF) process on the microstructure, texture, mechanical and electrical properties of AA-6063 under different heat treatment conditions at various MDF temperatures was studied. The annealed AA-6063 alloy was processed up to three passes of MDF at ambient temperature. Three passes of this process were also applied to the solution-treated AA-6063 at ambient temperature and 177 °C. Microstructural investigations demonstrated that the MDF process led to a significant reduction in the average grain size as well as a considerable increase in the fraction of low angle grain boundaries. Texture analysis revealed that copper and Goss textures were mainly developed within the annealed and solution-treated samples of AA-6063, respectively. The hardness and shear strength values of all processed samples also showed a sizeable improvement compared to the initial heat-treated samples. For example, the hardness and shear yield strength value of the solution-treated sample MDFed for three passes showed more than 100 and 70% increase, respectively. The effect of the MDF process on the electrical conductivity of AA-6063 under different heat treatment conditions at various temperatures was negligible. So, it can be concluded that the MDF process increased the mechanical properties without an appreciable decrease in electrical conductivity.

show abstract

Section: Resultsmentioning

confidence: 68%

Microstructure, Texture, Electrical and Mechanical Properties of AA-6063 Processed by Multi Directional Forging

et al. 2018

View full text Add to dashboard Cite

show abstract

“…In addition, the intensities of diffraction peaks, such as {10true1¯2}, {11true2¯0}, and {10true1¯3}, were enhanced after ECAP, which was due to more pyramidal slip systems being activated with the temperature increase. The main slipping mechanisms of the as-rolled sample were cylindrical pyramidal slips [23,24]. After ECAP, the intensity of the pyramidal slip system was clearly enhanced.…”

Section: Resultsmentioning

confidence: 99%

The Effect of ECAP Temperature on the Microstructure and Properties of a Rolled Rare Earth Magnesium Alloy

Tan

et al. 2019

Materials

Self Cite

View full text Add to dashboard Cite

Deformation of an as-rolled rare earth Mg-2Y-0.6Nd-0.6Zr alloy, at different temperatures, was carried out along the BC (90° anticlockwise rotation of the samples after each ECAP pass) route by equal channel angular pressing (ECAP). The effects of the deformation temperature and the predeformation on the microstructure of the magnesium alloy were determined by the microstructure examination. The slip systems and texture change of the Mg-2Y-0.6Nd-0.6Zr alloy were investigated by X-ray diffraction (XRD) and electron backscattered diffraction (EBSD), after equal channel angular deformation. The results showed that after seven passes of rolling, the grain size in the Mg-2Y-0.6Nd-0.6Zr alloy was refined to approximately 22 µm and the slip occurred mainly by a cylindrical slip and a pyramidal slip. After one pass of ECAP at 340 °C, the internal average grain size was significantly reduced to 11 µm, the cylindrical diffraction intensity clearly weakened, and the pyramidal diffraction intensity increased. EBSD pole figure analysis revealed that the base texture of the rolled Mg-2Y-0.6Nd-0.6Zr alloy weakened from 24.31 to 11.34 after ECAP. The mechanical properties indicated that the tensile strength and elongation of the rolled Mg-2Y-0.6Nd-0.6Zr alloy reached maximum values, when the deformation temperature was 340 °C.

show abstract

“…Magnesium and magnesium alloys are widely used because of the advantages of their low density, high specific strength, high damping capacity, noise reduction and so on. [1][2][3][4][5][6] Pure magnesium has the best damping capacity, but poor mechanical properties, such as low hardness, low yield strength and tensile strength, which limit the range of its application. [7][8] Several efforts to improve its mechanical properties through various severe-plastic-deformation (SPD) methods have been made since 1990s.…”

Section: Introductionmentioning

confidence: 99%

Effect of ZrO2 additions on fabrication of ZrO2/Mg composites via friction-stir processing

Chen¹,

Li²,

Liao³

et al. 2019

Mater. Tehnol.

View full text Add to dashboard Cite

ZrO2/Mg composites were prepared with friction-stir processing (FSP) using different ZrO2 amounts. The effects of FSP on the microstructure, mechanical properties and damping capacities of ZrO2/Mg composites are discussed in this paper. After friction-stir processing, the central region of the stir zone of a ZrO2/Mg composite obtained fine, uniform, equiaxed crystal grains. An addition of ZrO2 can obviously refine the grains and improve the microhardness and mechanical properties of ZrO2/Mg composites. The ZrO2/Mg composites prepared with friction-stir processing have better damping capacities. During a strain-damping test, the damping behavior of ZrO2/Mg composites follows the Granato-Lücke dislocation damping theory (G-L theory). The ZrO2/Mg composites with a groove width of 0.8 mm had the best damping capacities. Avtorji so pripravili ZrO2/Mg kompozite z vrtilno tornim postopkom (FSP, angl.: friction stir processing) z razli~no vsebnostjo ZrO2. V~lanku opisujejo vpliv FSP postopka na mikrostrukturo, mehanske lastnosti in sposobnost za du{enje izdelanih ZrO2/Mg kompozitov. Po izvedenem FSP postopku je v centralnem delu ZrO2/Mg kompozitov (v coni me{anja oz. vrtenja) nastalo homogeno podro~je drobnih enakoosnih kristalnih zrn. Dodatek ZrO2 je o~itno udrobnil mikrostrukturo kompozita, zvi{al mikrotrdoto in izbolj{al ostale mehanske lastnosti ZrO2/Mg kompozitov. Izdelani FSP ZrO2/Mg kompoziti imajo tudi bolj{e sposobnost du{enja. Deformacijsko-du{ilni preizkus je pokazal, da se karakteristika du{enja izdelanih ZrO2/Mg kompozitov dobro ujema z Granato-Lücke dislokacijsko teorijo du{enja (G-L teorija). Kompoziti ZrO2/Mg s {irino brazde 0,8 mm so imeli najbolj{o sposobnost du{enja. Klju~ne besede: ZrO2/Mg kompoziti, vrtilno-torni proces, sposobnost za mehansko du{enje, G-L teorija

show abstract

Influence of Equal Channel Angular Pressing Passes on the Microstructures and Tensile Properties of Mg-8Sn-6Zn-2Al Alloy

Cited by 25 publications

References 38 publications

Microstructure, Texture, Electrical and Mechanical Properties of AA-6063 Processed by Multi Directional Forging

Microstructure, Texture, Electrical and Mechanical Properties of AA-6063 Processed by Multi Directional Forging

The Effect of ECAP Temperature on the Microstructure and Properties of a Rolled Rare Earth Magnesium Alloy

Effect of ZrO2 additions on fabrication of ZrO2/Mg composites via friction-stir processing

Contact Info

Product

Resources

About