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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Glass formation of Ti-Ni-Sn ternary alloys correlated with TiNi-Ti3Sn pseudo binary eutectics
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Glass formation of Ti-Ni-Sn ternary alloys correlated with TiNi-Ti3Sn pseudo binary eutectics

机译：与TiNi-Ti3Sn拟二元共晶相关的Ti-Ni-Sn三元合金的玻璃形成

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Glass-forming ability (GFA) of Ti-Ni-Sn ternary alloys was investigated. Applying recent models based oil atomic size ratio and efficient packing, the composition favoring the glass formation is predicted. Our experiments indicate that the optimized glass-forming composition is located at Ti56Ni38Sn6, with the critical thickness of complete glass formation approaching 100 mu m for the melt-spun ribbons. The Ti56Ni38Sn6 metallic glass exhibits a sizable supercooled liquid region (Delta T-x) of about 35 K and a reduced glass transition temperature (T-rg) of 0.52. We demonstrate that the glass formation of the Ti56Ni38Sn6 alloy correlates with the (L -> TiNi + Ti3Sn) Pseudo binary eutectic reaction in Ti-Ni-Sn ternary system, which has an invariant temperature and composition at similar to 1370 K and similar to Ti58Ni34Sn8, respectively. With respect to Sn-free Ti-Ni binary alloys, the GFA is enhanced for the Ti-Ni-Sn ternary alloys, but the improvement is limited possibly due to changes in the crystalline phases competing with glass formation.
机译：研究了Ti-Ni-Sn三元合金的玻璃形成能力（GFA）。应用基于油原子尺寸比和有效填充的最新模型，可以预测有利于玻璃形成的成分。我们的实验表明，优化的玻璃成型成分位于Ti56Ni38Sn6处，对于熔融纺丝带，完整玻璃成型的临界厚度接近100微米。 Ti56Ni38Sn6金属玻璃具有约35 K的相当大的过冷液体区域（ΔT-x）和0.52的降低的玻璃化转变温度（T-rg）。我们证明了Ti56Ni38Sn6合金的玻璃形成与Ti-Ni-Sn三元体系中的（L-> TiNi + Ti3Sn）伪二元共晶反应有关，该假二元共晶反应的温度和组成与1370 K和Ti58Ni34Sn8相似， 分别。对于无锡的Ti-Ni二元合金，Ti-Ni-Sn三元合金的GFA有所提高，但是这种改善可能会受到与玻璃形成竞争的结晶相变化的限制。

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