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DIFFUSION BONDING OF SUPERPLASTICLC4 AIALLOY |
HUANG Yan; MA Longxiang (Northeast University of Technology; Shenyang) |
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Cite this article:
HUANG Yan; MA Longxiang (Northeast University of Technology; Shenyang). DIFFUSION BONDING OF SUPERPLASTICLC4 AIALLOY. Acta Metall Sin, 1992, 28(9): 81-86.
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Abstract Diffusion bonding of superplastic LC4 AI alloy, with prior surface treatment of organic solution protecting coating Sfter electropolishing and stainless steel wool brushing, was performed by Gleeble test machine under conditions ranged 490—530℃, 1.0 —3.0 MPa, 30—180 min and vacuum of 1.0×10~-3 Pa. The joints were examined to have similar strength and microstructure to the base metal. Discussion was made on the effect of superplastic treatment on bonding. The micromechanism for diffusion bonding of superplastic metal was suggested as the migration of original bond interfaces caused by atomic diffusion and grain growth. Experimental results for the alloy as quench-aged state were presented to compare with the superplastic one.
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Received: 18 September 1992
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1 黄岩,马龙翔.材料科学进展,1988;2(4) :11 2 Pilling J. In: Hamilton C H, Paton N E eds., Superplaastic and Superplastic Forming, Proc Int Conf on Superplasticity and Superplastic Forming, Blaine, Washington, August 1-4, 1988, Seatlle: The Minerals, Metals Meterials Society, 1988: 475 3 Chokshi A H. J M Ater Sci, 1986; 21: 2073 4 Ricks R A and Winkler P J In: Hamilton C H, Paton N E eds., Superplastic and Superplastic Forming,Proc Int Conf on Superplasticity and Superplastic Forming, Blaine, Washington, August 1-4, 1988, Seatlle: The Minerals, Metals Materials Society, 1988: 377V |
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