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ON THE NATURE AND ORIGIN OF FLAT-SPOT IN FLASH-WELDED JOINTS |
ZHENG Engui TIAN Jifeng (Institute of Metal Research.Academia Sinica.Shenyang);WU Yuekui (Shenyang Railway Administration) |
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Cite this article:
ZHENG Engui TIAN Jifeng (Institute of Metal Research.Academia Sinica.Shenyang);WU Yuekui (Shenyang Railway Administration). ON THE NATURE AND ORIGIN OF FLAT-SPOT IN FLASH-WELDED JOINTS. Acta Metall Sin, 1987, 23(1): 126-152.
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Abstract Study was carried out on the nature and origin of the flat spots in flash- welded seams of the rails by the technique of failure analysis.It was detected that the flat spots are originated from the coalescence of silicate inclusions which are formed in the process of flash-welding and are closely related to the welding technical specification.
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Received: 18 January 1987
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1 A C,1949;386-399 2 Nippes E F.Savage W F.Grotke G.et al.Weld J,1957;36:192-216 3 Riecansky V.Lucas W.Weld Res Int,1974;4(4) :1-27 4 Wuppermann G T.Stahl Eisen,1971;91:1239-1249 5 Sullivan J F.Weld J,1971;50:213s-221s 6 Sequires I F.Br Weld J,1958;15:610-620 7 东方锅炉厂,焊接,1975;(2) :4-6 8 Welding Handbook,7th ed,1980Z |
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