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DAMPING CAPACITY OF Fe-Cr-Al-Si ALLOYS |
WANG Weiguo; ZHOU Bangxin; ZHENG Zhongmin(Laboratory for Nuclear Fuel and Materials; Nuclear Power Institute of China; Chengdu 610041)Correspondent: WANG Weiguo; Tel: (028)5582199-88531 |
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Cite this article:
WANG Weiguo; ZHOU Bangxin; ZHENG Zhongmin(Laboratory for Nuclear Fuel and Materials; Nuclear Power Institute of China; Chengdu 610041)Correspondent: WANG Weiguo; Tel: (028)5582199-88531. DAMPING CAPACITY OF Fe-Cr-Al-Si ALLOYS. Acta Metall Sin, 1998, 34(10): 1039-1042.
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Abstract The effect of silicon on the damping capacity of Fe-Cr-Al alloy has beeninvestigated with the inverted torsion pendulum teclmiques. The results indicate that, smallamount silicon (app. 1% mass fraction) addition to Fe-Cr-Al or substitution of silicon foraluminum in Fe-Cr-Al alloy can make the damping capacity of the alloys higher than that ofFe-Cr-Al alloy when annealed below 1273 K; substituting silicon for small amount aluminum inFe-Cr-Al, the damping capacity of the alloy is much higher than that of Fe-Cr-Al alloy whenannealed above 1373 K followed by air cooling. The curves of logajrithmic decrement versus strainamplitude reveal the damping of the alloys resulting mainly from magonetomechanical hystereses.
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Received: 18 October 1998
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