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金属学报  1985, Vol. 21 Issue (4): 113-119    
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第三长周期过渡金属对PdSi_(16.5)非晶态合金延脆转变性能的影响
郑云;宁远涛
昆明贵金属研究所;昆明贵金属研究所
INFLUENCE OF TRANSITION METALS OF THE THIRD LONG PERIOD ON DUCTILE-BRITTLE TRANSFORMATION OF PdSi_(16.5)GLASS
ZHENG Yun;NING Yuantao Institute of Precious Metals;Kunming
引用本文:

郑云;宁远涛. 第三长周期过渡金属对PdSi_(16.5)非晶态合金延脆转变性能的影响[J]. 金属学报, 1985, 21(4): 113-119.
, . INFLUENCE OF TRANSITION METALS OF THE THIRD LONG PERIOD ON DUCTILE-BRITTLE TRANSFORMATION OF PdSi_(16.5)GLASS[J]. Acta Metall Sin, 1985, 21(4): 113-119.

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摘要: 测定了用转鼓法制备的Pd_(82·5)M_1Si_(18·5)非晶态合金的应力松弛和延脆转变特性.发现前过渡金属Hf,Ta,W,Re显著提高该非晶态合金的延脆转变温度T_B和延脆转变激活能△E_B,后过渡金属中的Os,Pt对其影响较小,而Ir则使T_B下降较多.添加前、后两类不同的过渡金属PdSi_(16■)非晶态合金的延脆转变方式也有所不同.比较了添加元素对延脆转变温度T_B、玻璃转变温度T_g、延脆转变激活能△E_B以及玻璃转变激活能△E_g的影响.用Gaskell模型和Engel-Brewer过渡金属电子理论解释了前、后过渡金属对PdSi_(16·5),非晶态合金延脆转变的不同影响.
Abstract:The stress relief and ductile-brittle transformation of the metallic glasses Pd_(82.5)M_1Si_(16.5)prepared by spinning roll have been examined.It was found that theductile-brittle transformation temperature,T_B,and activation energy,△E_B,of theglasses composed by the preceding transition metals,e.g.,Hf,Ta,W,Re,are in-creased markedly and by the later ones,e.g.,Os,Pt,influenced slightly,but byIr,T_B is decreased too many.The mode of ductile-brittle transformation of themetallic glasses PdSi_(16.5)is different among themselves composed by the precedingand later transition metals.The comparison of the influences of additives on theirtemperatures and activation energies of the ductile-brittle transformation and glasstransition has been made.These behaviours have been discussed on the basis ofthe Gaskell′s model and the Engel-Brewer′s electron theory of transition metals.
收稿日期: 1985-04-18     
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