Strain amplitude dependence of the damping capacity in Fe-17%Mn alloy

Journal Article · Tue Jan 13 04:00:00 EST 1998 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(97)00525-3· OSTI ID:611560

Jun, J H; Choi, C S ^[1]

---

1. Yonsei Univ., Seoul (Korea, Republic of)

Recently, Fe-high Mn alloys undergoing non-thermoelastic {gamma} {yields} {epsilon} martensitic transformation have been paid considerable attention due to their potential in high damping applications. In a previous work the authors have reported that the damping capacity of Fe-17%Mn alloy is linearly dependent on the amount of {epsilon} martensite. The present study is intended to investigate the strain amplitude dependence of the damping capacity on the amount of {epsilon} martensite in an Fe-17% Mn alloy, since various strain amplitudes may lead to the different dependences of damping capacity on the amount of {epsilon} martensite. For this investigation, they measured the damping capacity in a wide range of 1 {times} 10{sup {minus}4} to 10 {times} 10{sup {minus}4} strain amplitude for the Fe-17%Mn alloy, the {epsilon} martensite content of which was varied from 35% to 79% by cooling at various temperatures between room temperature (25 C) and liquid nitrogen temperature ({minus}196 C).

• OSTI ID: 611560
• Journal Information: Scripta Materialia, Journal Name: Scripta Materialia Journal Issue: 4 Vol. 38; ISSN 1359-6462; ISSN SCMAF7
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL-PHASE TRANSFORMATIONS
DAMPING
IRON BASE ALLOYS
MANGANESE ALLOYS
STRAINS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K