Restoration Heat Treatment of Welded Joints of Steam Piping for Steam Power Plants.

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Antikain, P.A.
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Teploenergetika | 1977年 / 10期
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摘要：
An investigation into the effect of restoration heat treatment (r. h. t. ) on the structure and properties of welded joints of steam piping is described. Eleven welded joints cut out of steam piping at different power plants after long-time operation and after r. h. t. were tested. It is shown that after normalization with 980 degree C and tempering at 720-730 degree C, the metal of the welded joints acquires microstructure close to that of the principal pipe metal. Also, mechanical properties of welded joints are improved.
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页码：34 / 38
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