Effect of ECAP and annealing treatment on ε martensite and damping capacity of Fe–18·39Mn alloy

Authors: Huang, S. K.; Wen, Y. H.; Li, N.; Ding, S.; Teng, J.

Source: Materials Science and Technology, Volume 23, Number 4, April 2007 , pp. 407-410(4)

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Abstract:

The microstructure and damping capacity of Fe–18·39Mn alloy after equal channel angular pressing (ECAP) and annealing treatment were studied. The damping capacity was measured using reversal torsion pendulum. The microstructure was observed using SEM and TEM. The phase structures were determined using XRD. The results indicated that the damping capacity of Fe–18·39Mn alloy all vanished after ECAP and annealing at 600°C, increased rapidly at 700°C, reached the maximum at 900°C and then decreased at 1000°C. All these were ascribed to the change of the size of ? martensite plates.

Keywords: EPSI MARTENSITE; FE-MN; ECAP; DAMPING ALLOY; DAMPING CAPACITY

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/174328407X176947

Publication date: 2007-04-01

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