18R LPSO(0001) planeDeformation mechanismMicro-pillarA promising Mg-Zn-Y alloy with the long-period stacking ordered (LPSO) second phase has been developed for about twenty years. Because the LPSO phase has the unique 18R crystal structure, particularly for its packing sequence along [0001], as...
14H LPSO phasehigh-temperature annealingmicrostructure evolutionThe microstructural evolution of a 18R single phase (S18) alloy during annealing at 773 K for 100 h was investigated in order to reveal the formation mechanism of 14H phase. The results showed that the as-cast S18 alloy was ...
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LPSO phase volume fraction.Cleavage-like facets observed in LPSO grains were related to high tensile stress,especially at the Mg/LPSO interface,due to the limited number of deformation mechanisms in LPSO crystal to accommodate out-of-basal plane strain.The increase of the fatigue limit with the ...
LPSO相高温退火显微组织演变为了揭示14H相的形成机理,制备并研究了18R LPSO单相Mg-Y-Zn(简称S18)合金经773 K退火100 h的显微组织演变。结果表明:铸态S18合金主要由18R相组成(其体积分数高于93%),并含有少量的W相和α-Mg相。退火时,S18合金中的18R相保持稳定,未转变成14H LPSO结构。然而,在α-Mg相内部...
18R LPSO相14H LPSO相高温退火显微组织演变为了揭示14H相的形成机理,制备并研究了18R LPSO单相Mg?Y?Zn(简称S18)合金经773 K退火100 h的显微组织演变.结果表明:铸态S18合金主要由18R相组成(其体积分数高于93%),并含有少量的W相和α-Mg相.退火时,S18合金中的18R相保持稳定,未转变成14H LPSO结...
Coexistence of 14H and 18R-type long-period stacking ordered (LPSO) phases following a novel orientation relationship in a cast Mg-Al-RE-Zn alloyTransmission electron microscopy (TEM)Long-period stacking ordered (LPSO) phaseMagnesium alloys
为了揭示14H相的形成机理,制备并研究了18R LPSO单相Mg-Y-Zn(简称S18)合金经773 K退火100 h的显微组织演变.结果表明:铸态S18合金主要由18R相组成(其体积分数高于93%),并含有少量的W相和α-Mg相.退火时,S18合金中的18R相保持稳定,未转变成14H LPSO结构.然而,在α-Mg相内部形成了14H层片相,其尺寸和体积...
为了揭示14H相的形成机理,制备并研究了18R LPSO单相Mg-Y-Zn(简称S18)合金经773 K退火100 h的显微组织演变。结果表明:铸态S18合金主要由18R相组成(其体积分数高于93%),并含有少量的W相和α-Mg相。退火时,S18合金中的18R相保持...
Because the LPSO phase plays an important role in strengthening mechanisms and it has the unique 18R crystal structure, it is interesting to clarify the deformation mechanism and size effect associated with this particular phase. In this study, uniaxial compression tests are conducted on LPSO along ...