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氢对Ti合金的Debye温度和晶格常数的影响

虞炳西 , 高树浚

金属学报

使用X射线衍射仪测定出不同氢含量的Ti-30Mo合金的Debye特征温度值以及晶格常数的变化,结果表明随着氢含量的增加,Debye特征温度相应地减小而晶格常数增加,证实了氢含量的增加会导致金属原子间键合力的减弱,从而造成金属脆化。

关键词: Debye温度 , lattice parameter , lattice decohesion theory , Ti alloy

EFFECT OF HYDROGEN ON DEBYE TEMPERATURE AND LATTICE PARAMETER OF Ti-30Mo ALLOY

YU Bingxi GAO Shujun Institute of Metal Research , Academia Sinica , Shenyang , China

金属学报(英文版)

The variations of Debye temperature and lattice parameter of Ti-30Mo alloy with different hydrogen contents were measured by means of X-ray diffraction.It was found that as the hydrogen content increases,the Debye temperature decreases,but the lattice parameter of the aUoy increases.The above results experimentally support the decohesion theory that the in- crease of hydrogen in metals will weaken the cohesive force between the atoms and make met- als brittle.

关键词: Debye temperature , null , null , null

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