|
Vol.42, No.8, 621 ~ 626, 2004
|
| Title |
| Effect of ε Martensite on the Damping Capacity of Austenitic Stainless Steel |
| 손동욱 Dong Uk Son , 김재환 Jae Hwan Kim , 김익수 Ick Soo Kim , 성장현 Jang Hyun Sung , 강창룡 Chang Yong Kang , Miyahara Kazuya |
|
|
|
| Abstract |
| The effect of the phases of y, α` and ε martensites, which constitute the structure of the 316L stainless steel with austenite structure at room temperature, on the damping capacity at room temperature has been investigated. As a result, various fractions of these phases were formed depending on the degree of cold work. The largest volume fraction of a martensite phase is obtained by 20% cold rolling and showed the highest damping capacity. The damping capacity is strongly controlled by the volume fraction of ε martensite with linear relationship, while the other phases of α` and r have actually no effect on the damping capacity. |
|
|
| Key Words |
| Damping capacity, Deformation-induced martensite, ε martensite phase, Internal friction, Noise, Vibration, Austenitic stainless steel |
|
|
 |
|
