Effects of Deformation and Thermal Cycling on Damping Capacity of Co-21 mass% Mn alloy

Seo, Young Seob; Lee, Young Kook; Choi, Chel‐Jong

doi:10.2320/matertrans.45.457

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Since the training treatment can be applied not only for Fe-Mn high-damping alloys but also other high-damping alloys [18,19], it is expected that damping capacity of stainless steels could be improved by the training treatment. In this study, thermo-mechanical training treatment is carried out for two types of austenitic stainless steels, i.e., Fe-18Cr-8Ni (SUS 304) and Fe-25Cr-20Ni (SUS 310S) stainless steels.…”

Section: Introductionmentioning

confidence: 99%

Thermo-Mechanical Training of Stainless Steels to Improve Damping Capacity

Watanabe

Iwata

Sato

2016

MSF

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The effects of thermo-mechanical training on damping capacity of two types of stainless steels, Fe-18Cr-8Ni (SUS 304) and Fe-25Cr-20Ni (SUS 310S) stainless steels, are studied. The thermo-mechanical training with bending deformation is adopted, since vibration manner in internal friction measurement is bending mode. An anisotropic damping capacity as well as hardness of samples is studied. It is found that deformation induced ε-martensite is observed for trained SUS 304 sample, while deformation twins are formed in the trained SUS 310S sample. It is also found that internal friction of SUS 304 sample is larger than that of SUS 310S sample. Increase in number of training results in an increase in the internal friction and hardness. In addition, anisotropic damping capacity is observed in the samples subjected the thermo-mechanical training. To be concluded, the thermo-mechanical training is useful for enhancement of both damping capacity and strength of SUS 304 and SUS 310S stainless steels.

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Section: Introductionmentioning

confidence: 99%

Thermo-Mechanical Training of Stainless Steels to Improve Damping Capacity

Watanabe

Iwata

Sato

2016

MSF

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Effect of Deformation on Damping Capacity and Microstructure of Fe–22%Mn–8%Co Alloy

2005

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Effect of deformation on damping capacity and microstructure of Fe-22%Mn-8%Co alloy has been investigated. The ! " stressinduced martensitic transformation occurs during deformation in the alloy. The amount of " martensite increases rapidly up to 5% deformation, and gradually increases with further deformation. The damping capacity of the alloy exhibits a maximum at around 5% deformation, and decreases with further deformation in spite of the increase in " martensite content. The deterioration of damping capacity beyond 5% is ascribed to the dislocations introduced during deformation, which obstruct the movement of damping sources of the alloy.

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Effects of Deformation and Thermal Cycling on Damping Capacity of Co-21 mass% Mn alloy

Cited by 2 publications

References 6 publications

Thermo-Mechanical Training of Stainless Steels to Improve Damping Capacity

Thermo-Mechanical Training of Stainless Steels to Improve Damping Capacity

Effect of Deformation on Damping Capacity and Microstructure of Fe–22%Mn–8%Co Alloy

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Effects of Deformation and Thermal Cycling on Damping Capacity of Co-21 mass% Mn alloy

Cited by 2 publications

References 6 publications

Thermo-Mechanical Training of Stainless Steels to Improve Damping Capacity

Thermo-Mechanical Training of Stainless Steels to Improve Damping Capacity

Effect of Deformation on Damping Capacity and Microstructure of Fe&ndash;22%Mn&ndash;8%Co Alloy

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Effect of Deformation on Damping Capacity and Microstructure of Fe–22%Mn–8%Co Alloy