EFFECT OF Mo ON B DIFFUSION IN Ni MEASURED BY PARTICLE TRACKING AUTORADIOGRAPHY

Acta Metall Sin

1991, Vol. 27

Issue (5): 83-89 DOI:

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EFFECT OF Mo ON B DIFFUSION IN Ni MEASURED BY PARTICLE TRACKING AUTORADIOGRAPHY

CHU Youyi;JI Ping;KE Jun T. Ko University of Science and Technology Beijing

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CHU Youyi;JI Ping;KE Jun T. Ko University of Science and Technology Beijing. EFFECT OF Mo ON B DIFFUSION IN Ni MEASURED BY PARTICLE TRACKING AUTORADIOGRAPHY. Acta Metall Sin, 1991, 27(5): 83-89.

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Abstract A new technique for the measurement of B diffusivity in B bearing alloys by particle tracking autoradiography after deboronization has been established with high sensitivity, good reprocibility and fair simplicity. Experimental results show that the Mo addition up to 3％ into Ni may accelerate the B diffusion in the range of 900—1250℃ and reduce both the activation energy and the frequency factor, of B diffusion but no more influential as the Mo added down to 0.5％.

Key words: diffusion autoradiography B Mo Ni

Received: 18 May 1991

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