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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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The deformation behavior of NIMONIC 80A was studied in the high temperature range of 900~1200°C and for strain rates varying between 0.02 and 20s<SUP>-1 </SUP>via the hot compression test. Processing maps for hot working were constructed on the basis of the power dissipation efficiency using a dynamic material model. The results showed that the strength during hot compression increased with increasing strain rate and decreasing temperature. At low strains, the processing map of NIMONIC 80A did not reveal any instability domain regardless of the strain rate and temperature. However, at high strains, the processing map exhibited an instability domain at a low strain rate of 0.2s<SUP>-1</SUP> and within a temperature range of 900 ~ 960°C. In the instability domain, the deformed microstructure exhibited shear bands and carbide precipitation while, in the safe domain, full recrystallization occurred.
목차
Abstract
1. 서론
2. 실험방법
3. 실험결과
4. 결론
REFERENCES
참고문헌 (10)
참고문헌 신청
1. [학술지(정기간행물)] - M. Sanjari / 2009 / An Optimization Method for Radial Forging Process using ANN and Taguchi Method / Int. J. Adv. Manuf. Technol 40 (7-8) : 776 ~ 784
2. [학술지(정기간행물)] - A. Bapari / 2008 / Simulation of Radial Forging Conditions by Third Hits Hot Compression Test / Mater. Sci. Eng. A 491 (1-2) : 258 ~ 265
3. [학술지(정기간행물)] - N. Srinivasan / 1995 / Hot Working Characteristics of Nimonic 75, 80A and 90 Superalloys: a Comparison using Processing Maps / J. Mater. Process. Technol 51 (1-4) : 171 ~ 192
4. [학술지(정기간행물)] - H. J. McQueen / 2002 / Constitutive Analysis in Hot Working / Mater. Sci. Eng., A 322 (1-2) : 43 ~ 63
5. [학술지(정기간행물)] - C. M. Sellars / 1972 / Hot Workability / Int. Mater. Rev 17 (1) : 1 ~ 24
2. [학술지(정기간행물)] - A. Bapari / 2008 / Simulation of Radial Forging Conditions by Third Hits Hot Compression Test / Mater. Sci. Eng. A 491 (1-2) : 258 ~ 265
3. [학술지(정기간행물)] - N. Srinivasan / 1995 / Hot Working Characteristics of Nimonic 75, 80A and 90 Superalloys: a Comparison using Processing Maps / J. Mater. Process. Technol 51 (1-4) : 171 ~ 192
4. [학술지(정기간행물)] - H. J. McQueen / 2002 / Constitutive Analysis in Hot Working / Mater. Sci. Eng., A 322 (1-2) : 43 ~ 63
5. [학술지(정기간행물)] - C. M. Sellars / 1972 / Hot Workability / Int. Mater. Rev 17 (1) : 1 ~ 24
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UCI(KEPA) : I410-ECN-0101-2014-550-002897630