Structural and diffusional phase transformations in liquid-quenched Mg85Y9Zn6 ribbons below the bifurcation temperature
Source abstract
Abstract
Abstract In-situ and simultaneous small- and wide-angle scattering measurements of liquid-quenched Mg85Y9Zn6 alloy ribbons were performed to examine phase transition during isothermal annealing at the temperatures below the bifurcation temperature, where long-period stacking ordered (LPSO) structures are not formed yet in the previous work. Even below the temperature, sluggish structural transformation destroying hcp stacking sequence was observed, and development of in-plane and inter plane cluster structures, as imperfect LPSO structure, became noticeable at long time annealing. The characteristic time for structural transformation showed well-defined thermally activated process with Q = 173.6 +/- 14.4 kJ/mol.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Material Dynamics and Properties · Metallic Glasses and Amorphous Alloys · Theoretical and Computational Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (35)
Show source-provided references
1. Rapidly Solidified Powder Metallurgy Mg97Zn1Y2 Alloys with Excellent Tensile Yield Strength above 600 MPa10.2320/matertrans.42.1172 ↗
2. Long period stacking structures observed in Mg97Zn1Y2 alloy10.1016/j.scriptamat.2004.04.003 ↗
3. Formation of 14H long period stacking ordered structure and profuse stacking faults in Mg-Zn-Gd alloys during isothermal aging at high temperature10.1016/j.actamat.2007.08.033 ↗
4. The 18R and 14H long-period stacking ordered structures in Mg-Y-Zn alloys10.1016/j.actamat.2010.01.022 ↗
5. Plastic deformation behavior of Mg12YZn with 18R long-period stacking ordered structure10.1016/j.intermet.2009.07.014 ↗
6. Formation and Mechanical Properties of Mg97Zn1RE2 Alloys with Long-Period Stacking Ordered Structure10.2320/matertrans.MER2007142 ↗
7. Enrichment of Gd and Al in the quadruple close packed planes and their in-plane long-range ordering in the long period stacking-ordered phase in the Mg-Al-Gd system10.1016/j.actamat.2011.08.011 ↗
8. The structure of long period stacking/order Mg-Zn-RE phases with extended non-stoichiometry ranges10.1016/j.actamat.2011.09.030 ↗
9. A formation criterion for Order-Disorder(OF) phases of the Long Period Stacking Order (LPSO)-type 院Mg-Al-RE(Rare Earth) Ternary Systems
10. Thermodynamic stability of Mg-based ternary long-period stacking ordered structures10.1016/j.actamat.2013.10.055 ↗
11. Effect of alloying elements on in-plane ordering and disordering of solute clusters in Mg-based long-period stacking ordered structures; A first-principles analysis10.1016/j.scriptamat.2013.07.003 ↗
12. Phase equilibria and transformation in ternary Mg-rich Mg-Y-Zn alloys10.1016/j.actamat.2012.05.035 ↗
13. Microstructure Simulation for Solidification of Magnesium-Zinc-Yttrium Alloy by Multi –phase –field Method Coupled with CALPHAD Database10.2355/isijinternational.50.1914 ↗
14. Highly ordered 10H-type long-period stacking order phase in a Mg-Zn-Y ternary alloy10.1016/j.scriptamat.2014.01.013 ↗
15. Crystal structures of highly-ordered long-period stacking –ordered phases with 18R,14H and 10H-type stacking sequences in the Mg-Zn-Y system10.1016/j.actamat.2015.08.004 ↗
16. H. Okuda, K. Kintsu, M. Ito, M. Yamasaki, Y. Kawamura, in preparation.
17. Nanoclusters first; a hierarchical phase transformation in a novel Mg alloy10.1038/srep14186 ↗
18. Development of microstructures in rapidly-quenched Mg85Y9Zn6 alloy ribbons during heating at a constant speed examined by simultaneous small- and wide angle scattering measurements10.1016/j.actamat.2016.06.028 ↗
19. Transition to long period stacking ordered structures in Mg85Gd9Zn6 alloys from amorphous ribbons examined by synchrotron radiation scattering: Comparison with Mg85Y9Zn6 alloys10.1016/j.scriptamat.2017.06.013 ↗
20. Phase stability of long-period stacking structures in Mg-Y-Zn: A first-principles study
21. Local Strain Fields of LPSO in Mg-Based Ternary Alloys10.2320/matertrans.MH201404 ↗
22. Structural and Compositional Modulation in Transformation of LPSO structure in Mg97Zn1Y2 Cast Alloys10.2320/matertrans.MI201221 ↗
23. Diffusional-displacive transformation enables formation of long-period stacking order in magnesium10.1038/s41598-017-04343-y ↗
24. Evolution of long-period stacking order structures on annealing as-cast Mg85Y9Zn6 alloy ingot observed by synchrotron radiation small-angle scattering10.1016/j.scriptamat.2012.11.041 ↗
25. Gunier · 1955
26. Thermodynamic Analysis on the Phase Separation of hcp Phase in the Mg-Y-Zn Ternary System10.2320/jinstmet.73.683 ↗
27. Self-Diffusion in Magnesium Single Crystals
28. Diffusion of 65Zn in Mg and Mg-xAl solid solutions
29. Das · 2014
30. Correlations for Diffusion Constants10.1016/0001-6160(80)90092-9 ↗
31. Generalized representation of grain boundary self-diffusion data
32. Solution softening in magnesium alloys; the effect of solid solutions on the dislocation core structure and nonbasal slip10.1088/0953-8984/25/2/022202 ↗
33. Dislocation binding as an origin for the improvement of room temperature ductility in Mg alloys10.1016/j.msea.2018.01.010 ↗
34. Dislocation Dynamics at Low Temperatures10.1103/PhysRev.115.543 ↗
35. Gerold · 1965 · 277