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2018 Vol.28, Issue 10 Preview Page
Effect of Stress on the Damping Capacity of Damaged Damping Alloy under Fatigue Stress

피로손상된 제진합금의 감쇠능에 미치는 피로 응력의 영향

Myeong-Soo Lee1
,
Ye-Na Lee2
,
Ki-Woo Nam2
,
Chang-Yong Kang1†
이 명수1
,
이 예나2
,
남 기우2
,
강 창룡1†
1Dept. of Metallurgical Engineering, Pukyong National University, Busan 48513, Republic of Korea
2Dept. of Materials Science and Engineering, Pukyong National University, Busan 48513, Republic of Korea
1부경대학교 금속공학과
2부경대학교 재료공학과
†Corresponding author E-Mail : metkcy@pknu.ac.kr (C.-Y Kang, Pukyong Nat’l Univ.)
October 2018. pp. 583-589
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Abstract

This study investigates the effect of fatigue stress on the damping capacity in a damaged Fe-22Mn-12Cr-3Ni-2Si-4Co damping alloy under fatigue stress. α’ and ε-martensite forms by fatigue stress in the damaged Fe-22Mn-12Cr-3Ni-2Si-4Co damping alloy under fatigue stress. The α’ and ε-martensite forms with the specific direction and surface relief, or they cross each other. With an increasing fatigue stress, the volume fraction of α’-martensite and ε-martensite increases. With an increasing fatigue stress, the damping capacity increases with an increase in the volume fraction of ε-martensite. The increase in the damping capacity in the damaged Fe-22Mn-12Cr-3Ni-2Si-4Co alloy under fatigue stress strongly affects the increase of ε-martensite formed by fatigue stress, but the damping capacity of the damaged Fe-22Mn-12Cr-3Ni-2Si-4Co damping alloy under fatigue stress is strongly controlled by a large amount of α’-martensite.

Keywords
damping capacity
damping alloy
martensite
fatigue stress
volume fraction
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 28
  • No :10
  • Pages :583-589
  • Received Date : 2018-08-06
  • Revised Date : 2018-09-14
  • Accepted Date : 2018-09-15
  • DOI :https://doi.org/10.3740/MRSK.2018.28.10.583
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