Abstract
Effect of thermal cycling(γ↔ε) on γ↔ε martensitic transformation kinetics and damping capacity of Fe-17mass%Mn alloy has been studied. The amount of ε martensite increases with thermal cycling in spite of decrease in Ms temperature. The increase in ε martensite content with thermal cycling is attributable to an increase in the density of martensite nucleation sites by introduction of dislocations during thermal cycling. The γ↔ε martensitic transformation kinetics shows a burst mode in the non-cycled specimen, while the kinetics exhibits a sigmoidal mode in the cycled specimens. The damping capacity of the alloy increases with increasing the ε martensite content in the non-cycled specimen. On the contrary, the damping capacity of the alloy decreases with increasing the ε martensite content in the cycled specimens. The reason is that the dislocations introduced during thermal cycling, which obstruct the movement of the damping sources, become more with thermal cycling.
| Original language | English |
|---|---|
| Pages (from-to) | 59-66 |
| Number of pages | 8 |
| Journal | Key Engineering Materials |
| Volume | 319 |
| DOIs | |
| Publication status | Published - 2006 Sep 14 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
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Effect of thermal cycling(γ↔ε) on martensitic transformation kinetics and damping capacity of Fe -17mass%Mn alloy. / Lee, Young-Kook; Seo, Young Seob; Jin, Won; Choi, Chong Sool.
In: Key Engineering Materials, Vol. 319, 14.09.2006, p. 59-66.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of thermal cycling(γ↔ε) on martensitic transformation kinetics and damping capacity of Fe -17mass%Mn alloy
AU - Lee, Young-Kook
AU - Seo, Young Seob
AU - Jin, Won
AU - Choi, Chong Sool
PY - 2006/9/14
Y1 - 2006/9/14
N2 - Effect of thermal cycling(γ↔ε) on γ↔ε martensitic transformation kinetics and damping capacity of Fe-17mass%Mn alloy has been studied. The amount of ε martensite increases with thermal cycling in spite of decrease in Ms temperature. The increase in ε martensite content with thermal cycling is attributable to an increase in the density of martensite nucleation sites by introduction of dislocations during thermal cycling. The γ↔ε martensitic transformation kinetics shows a burst mode in the non-cycled specimen, while the kinetics exhibits a sigmoidal mode in the cycled specimens. The damping capacity of the alloy increases with increasing the ε martensite content in the non-cycled specimen. On the contrary, the damping capacity of the alloy decreases with increasing the ε martensite content in the cycled specimens. The reason is that the dislocations introduced during thermal cycling, which obstruct the movement of the damping sources, become more with thermal cycling.
AB - Effect of thermal cycling(γ↔ε) on γ↔ε martensitic transformation kinetics and damping capacity of Fe-17mass%Mn alloy has been studied. The amount of ε martensite increases with thermal cycling in spite of decrease in Ms temperature. The increase in ε martensite content with thermal cycling is attributable to an increase in the density of martensite nucleation sites by introduction of dislocations during thermal cycling. The γ↔ε martensitic transformation kinetics shows a burst mode in the non-cycled specimen, while the kinetics exhibits a sigmoidal mode in the cycled specimens. The damping capacity of the alloy increases with increasing the ε martensite content in the non-cycled specimen. On the contrary, the damping capacity of the alloy decreases with increasing the ε martensite content in the cycled specimens. The reason is that the dislocations introduced during thermal cycling, which obstruct the movement of the damping sources, become more with thermal cycling.
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U2 - 10.4028/0-87849-406-5.59
DO - 10.4028/0-87849-406-5.59
M3 - Article
VL - 319
SP - 59
EP - 66
JO - Key Engineering Materials
JF - Key Engineering Materials
SN - 1013-9826
ER -