EFFECT OF HYDROGEN ON DEBYE TEMPERATURE AND LATTICE PARAMETER OF TITANIUM ALLOY

Acta Metall Sin

1990, Vol. 26

Issue (6): 29-33 DOI:

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EFFECT OF HYDROGEN ON DEBYE TEMPERATURE AND LATTICE PARAMETER OF TITANIUM ALLOY

YU Bingxi;GAO Shujun Institute of Metal Research; Academia Sinica; Shenyang

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YU Bingxi;GAO Shujun Institute of Metal Research; Academia Sinica; Shenyang. EFFECT OF HYDROGEN ON DEBYE TEMPERATURE AND LATTICE PARAMETER OF TITANIUM ALLOY. Acta Metall Sin, 1990, 26(6): 29-33.

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Abstract The variations of Debye temperature and lattice parameter of a Ti-30Mo alloy with different hydrogen contents have been measured by means of X-raydiffraction. It was found that as the hydrogen content increases, the Debye tempe-rature decreases, but the lattice parameter of the alloy is increased. The above res-ults support experimentally the decohesion theory that hydrogen in metals willweaken the cohesive force between the atoms and make metals brittle.

Key words: Debye temperature lattice parameter lattice decohesion theory Ti alloy

Received: 18 June 1990

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