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Revealing the relationships between alloy structure,composition and plastic deformation in a ternary alloy system by a combinatorial approach 被引量:1
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作者 Jianping Lai Wen Hu +4 位作者 Amit Datye Jingbei Liu Jan Schroers udo d.schwarz Jiaxin Yu 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2021年第25期97-104,共8页
A high-throughput approach based on magnetron co-sputtering of alloy libraries is employed to investigate mechanical properties of crystalline and amorphous alloys in a ternary palladium(Pd)-tungsten(W)-silicon(Si)sys... A high-throughput approach based on magnetron co-sputtering of alloy libraries is employed to investigate mechanical properties of crystalline and amorphous alloys in a ternary palladium(Pd)-tungsten(W)-silicon(Si)system with the aim to reveal the difference in plastic deformation response and extract the relevant structure-property relationships of the alloys in the system.It was found that in contrast to crystalline alloys,the amorphous ones,i.e.,metallic glasses,exhibited a much smaller fluctuation range in the plasticity parameters(Er2/H and Wp/Wt),indicating a significant difference in the plastic deformation mechanism controlling the mechanical properties for the respective alloys.We propose that the inhomogeneous deformation of amorphous alloys localized in thin shear bands is responsible for the weaker compositional dependence of both plasticity parameters,while dislocation gliding in crystalline materials is significantly more dependent on the exact structure,thus resulting in a larger scattering range.Based on the representative efficient cluster packing model,a set of composition-dependent atomic structural models is proposed to figure out the structure-property relationships of amorphous alloys in Pd-W-Si alloy system. 展开更多
关键词 HIGH-THROUGHPUT Metallic glass Plastic deformation Magnetron co-sputtering NANOINDENTATION Mechanical properties
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