The addition of glass formers, B and P, raises not only the shear stiffness but also the tensile yield strain (ϵy) of Fe‐ and Co‐based glasses. ϵy increases by a factor of 2 from 1.23×10-2 for Pt–Ni–P glasses to 2.45×10-2 for Fe–B glasses as the Poisson’s ratio decreases from 0.42 to 0.32. The Vickers hardness of a Fe75B25 glass attains 1300 kg/mm2 which is the highest value reported for metallic glasses. The directionality of interatomic forces either due to atomic ordering or s‐d hybrid bonding in transition metals is proposed to be responsible for this behavior.
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机译：添加玻璃成形剂B和P不仅会提高铁基和钴基玻璃的剪切刚度，而且会提高拉伸屈服应变（ϵy）。当泊松比从0.42降至0.32时，y从Pt–Ni–P玻璃的1.23×10-2到Fe–B玻璃的2.45×10-2增长2倍。 Fe75B25玻璃的维氏硬度达到1300 kg / mm2，这是金属玻璃的最高值。提议由于过渡金属中原子序或s-d杂化键导致的原子间力的方向性是造成这种行为的原因。
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