Journal Search Engine
Search Advanced Search Adode Reader(link)
Download PDF Export Citaion korean bibliography PMC previewer
ISSN : 1225-0562(Print)
ISSN : 2287-7258(Online)
Korean Journal of Materials Research Vol.28 No.10 pp.583-589
DOI : https://doi.org/10.3740/MRSK.2018.28.10.583

Effect of Stress on the Damping Capacity of Damaged Damping Alloy under Fatigue Stress

Myeong-Soo Lee1, Ye-Na Lee2, Ki-Woo Nam2 and Chang-Yong Kang1†
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
Corresponding author
E-Mail : metkcy@pknu.ac.kr (C.-Y Kang, Pukyong Nat'l Univ.)

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.

피로손상된 제진합금의 감쇠능에 미치는 피로 응력의 영향

이명수1·이예나2·남기우2·강창룡1†
1부경대학교 금속공학과,
2부경대학교 재료공학과

초록

 

Figure

Table