DAMPING ALLOY
A damping alloy that is an Fe-Mn-(Cr, Ni)-Si-based damping alloy containing at least one of Cr or Ni or further contains Al, the damping alloy containing component compositions of: 5 mass% ‰¤ Mn ‰¤ 28 mass%; 0 mass% ‰¤ Cr ‰¤ 15 mass%; 0 mass% ‰¤ Ni < 15 mass%; 0 mass% < Si < 6.5 mass%; and...
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Main Authors | , , , , , , , , , , , , , , , |
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Format | Patent |
Language | English French German |
Published |
04.11.2015
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Subjects | |
Online Access | Get full text |
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Summary: | A damping alloy that is an Fe-Mn-(Cr, Ni)-Si-based damping alloy containing at least one of Cr or Ni or further contains Al, the damping alloy containing component compositions of:
5 mass% ‰¤ Mn ‰¤ 28 mass%;
0 mass% ‰¤ Cr ‰¤ 15 mass%;
0 mass% ‰¤ Ni < 15 mass%;
0 mass% < Si < 6.5 mass%; and
0 mass% ‰¤ Al < 3 mass%,
the balance being Fe and inevitable impurities,
wherein the component compositions satisfy the following conditions:
[%Ni] + 0.5 [%Mn] > 0.75 [%Cr] + 1.125 [%Si] + 2 [%Al]; and
37 < [%Mn] + [%Cr] + 2 [%Ni] + 5 [%Al] < 45 (wherein [%Ni], [%Mn], [%Cr], [%Si], and [%Al] represent contents (mass%) of Ni, Mn, Cr, Si, and Al, respectively). Thus, a damping alloy for an elasto-plastic damper such as the Fe-Mn-(Cr, Ni)-Si-based alloy can be provided in which proof stress and stress amplitude after cyclic tension-compression deformation are lowered and the number of cycles to fracture is increased, the damping alloy being capable of being used in a maintenance-free manner even after long-period ground motion and being mass-produced. |
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Bibliography: | Application Number: EP20130869412 |