Optimization for toughness in metalloid-free Ni-based bulk metallic glasses
Optimization for toughness in metalloid-free Ni-based bulk metallic glasses
复制标题
无类金属镍基大块金属玻璃韧性的优化
DOI:
10.1016/j.scriptamat.2010.12.047
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发表时间:
2011-04
期刊:
影响因子:
--
通讯作者:
徐坚
中科院分区:
文献类型:
--
作者:
徐坚
The toughness of metalloid-free Ni-based bulk metallic glasses (BMGs) manifests a concentration dependency. In terms of measured notch toughness, Ni40Cu2Pd2Zr27.6Ti18.4Al10BMG exhibits the optimal toughness among the six investigated alloys. Its fracture energy is comparable to Fe-based BMGs with optimal toughness. In contrast to the Poisson’s ratio, the shear modulus is much more sensitive to composition change in the Ni-based BMGs. Improvement in toughness of Ni-based BMGs roughly scales with reducing the shear modulus or glass transition temperature.
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