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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.4
- 수록면
- 267 - 275 (9page)
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이 논문의 연구 히스토리 (6)
2012
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초록· 키워드
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Austenite stainless steel 304 has properties of high resistance to corrosion and temperature changes. Therefore, this material is widely used in various of industries. However, when the material is subjected to heating and cooling cycles the forming accuracy, for example, the right angle associated with a sharp bend such as corner is lost. This phenomenon is caused by the reversion of the deformation-induced martensite into austenite when the temperature in increased. This result in misfit of a structure or an assembly, and an increase in residual stress. Hence, it is important to understand this process. In this study, to evaluate the mechanical behavior of the deformation-induced martensite and reversed austenite, a scanning acoustic spectroscope including the capability of obtaining both phase and amplitude of the ultrasonic wave (i.e., the complex V(z) curve method) was used. Then, the velocities of the SAW propagating within the specimens made in different conditions were measured. The experimental differences of the SAW velocities obtained in this experiment were ranging from 2,750 m/s to 2,850 m/s, and the theoretical difference was 3.6% under the assumption that the SAW velocity was 2,800 m/s. The error became smaller as the martensite content was increased. Therefore, the SAW velocity may be a probe to estimate the marternsite content.
목차
Abstract
1. Introduction
2. Experimental Apparatus
3. Theory
4. Description of Specimen
5. Experimental Results
6. Discussion
7. Conclusion
References
참고문헌 (14)
참고문헌 신청
2. [학술지(정기간행물)] - Mo, Y. W / 2005 / Welding Characteristics on Hear input Changing of Laser Dissimilar Metals Welding / Transaction of KSMTE 15 (2) : 51 ~ 58
3. [학술지(정기간행물)] - Kasuga, Y / 1996 / Change in Shape of a Cold Formed and Annealed Stainless Steel Sheet and Joining with use of this Change / J. of Materials Processing Technology 60 (1) : 233 ~ 238
4. [학술지(정기간행물)] - Atalar, A / 1977 / Phase Imaging in Reflection with the Acoustic Microscope / Appl. Phys. Lett 31 (12) : 791 ~ 793
5. [학술지(정기간행물)] - Weglein, R. D / 1979 / A Model for Predicting Acoustic Materials Signatures / Appl. Phys. Lett 34 (3) : 179 ~ 181
6. [학술지(정기간행물)] - Parmon, W / 1979 / Ray Interpretation of the Material Signature in the Acoustic Microscope Electron / Lett 15 (21) : 684 ~ 686
3. [학술지(정기간행물)] - Kasuga, Y / 1996 / Change in Shape of a Cold Formed and Annealed Stainless Steel Sheet and Joining with use of this Change / J. of Materials Processing Technology 60 (1) : 233 ~ 238
4. [학술지(정기간행물)] - Atalar, A / 1977 / Phase Imaging in Reflection with the Acoustic Microscope / Appl. Phys. Lett 31 (12) : 791 ~ 793
5. [학술지(정기간행물)] - Weglein, R. D / 1979 / A Model for Predicting Acoustic Materials Signatures / Appl. Phys. Lett 34 (3) : 179 ~ 181
6. [학술지(정기간행물)] - Parmon, W / 1979 / Ray Interpretation of the Material Signature in the Acoustic Microscope Electron / Lett 15 (21) : 684 ~ 686
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