采用Sn替代Ti50Ni22Cu18Al4Si4B2合金中的Si和B, 形成Ti50Ni22Cu18Al4Snx(Si0.67B0.33)6-x(x=0,3, 6)系列合金. 所有的预制合金碎屑经过机械研磨均发生非晶化转变. 随着合金中Sn含量的增加, 球磨产物中转变未尽的晶体相-Ti含量减少. 由Sn完全替代Si和B的Ti50Ni22Cu18Al4Sn6合金, 机械研磨可形成与熔体急冷几乎相同的单一均匀非晶相, 过冷液态温度区间可达到66 K.
Elements Si and B in the Ti50Ni22Cu18Al4Si4B2 alloy are substituted with Sn to form the Ti50Ni22Cu18Al4Snx(Si0.67B0.33)6-x (x=0,3,6) series alloys. In all cases, mechanical milling of the prealloyed fragments results in the amorphization of the alloys. With increasing the Sn content in the alloys, the fraction of residual α-Ti crystallites in the final milled product was reduced. For the Ti50Ni22Cu18Al4Sn6 alloy, in which the Si and B are completely replaced with Sn, the nearly complete amorphization is achievable. A single amorphous phase, similar to the melt-quenched glass, formed in the milled alloy. Such a ball-milled glassy alloy exhibits a large supercooled liquid region about 66 K.
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