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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Continuous casting is a process where molten metal is solidified into a semi-finished billet on a large scale with either a rectangular or round cross section for subsequent processing. The use of continuous casting provides an opportunity for producing material on a practical industrial scale with lower cost than conventional casting. In the current study, the material was fabricated by continuous casting and subsequent extrusion. Tensile tests were conducted on continuous cast ZK60A after extrusion over a range of strain rates at temperatures from 473K to 623K. The alloy exhibits a quasi-superplastic behavior with a maximum recorded elongation of ~250% at 523K when tested with an initial strain rate of 10<SUP>-5</SUP>/s. The experiments give a strain rate sensitivity exponent of 0.3~0.4 and an activation energy of 108 kJ/mol. From the current investigation, it was found that the high-temperature plastic flow of the ZK60A is controlled by a dislocation viscous glide mechanism.
목차
Abstract
1. 서론
2. 실험방법
3. 실험결과
4. 결론
REFERENCES
참고문헌 (18)
참고문헌 신청
1. [학술지(정기간행물)] - N. D. Saddock / 2010 / Grain-scale Creep Processes in Mg-Al-Ca Base Alloys: Implications for Alloy Design / Scr. Mater. 63 (7) : 692 ~ 697
2. [학술지(정기간행물)] - T. M. Pollock / 2010 / Weight Loss with Magnesium Alloys / Science 328 (5981) : 986 ~ 987
3. [학술지(정기간행물)] - H. Takuda / 1999 / Effect of Strain Rate on Deformation Behaviour of a Mg-8.5Li-1Zn Alloy Sheet at Room temperature / Mater. Sci. Eng. A 271 (1) : 251 ~ 256
4. [학술지(정기간행물)] - S. R. Agnew / 2006 / Mg Sheet Metal Forming: Lessons Learned from Deep Drawing Li and Y Solid-Solution Alloys / JOM 58 (5) : 62 ~ 69
5. [단행본] - C. S. Roberts / 1960 / Magnesium and Its Alloys / John Wiley & Sons : 81 ~ 107
2. [학술지(정기간행물)] - T. M. Pollock / 2010 / Weight Loss with Magnesium Alloys / Science 328 (5981) : 986 ~ 987
3. [학술지(정기간행물)] - H. Takuda / 1999 / Effect of Strain Rate on Deformation Behaviour of a Mg-8.5Li-1Zn Alloy Sheet at Room temperature / Mater. Sci. Eng. A 271 (1) : 251 ~ 256
4. [학술지(정기간행물)] - S. R. Agnew / 2006 / Mg Sheet Metal Forming: Lessons Learned from Deep Drawing Li and Y Solid-Solution Alloys / JOM 58 (5) : 62 ~ 69
5. [단행본] - C. S. Roberts / 1960 / Magnesium and Its Alloys / John Wiley & Sons : 81 ~ 107
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UCI(KEPA) : I410-ECN-0101-2015-550-001701095