지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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The fatigue behavior of AM60 magnesium alloy produced by equal channel angular pressing(ECAP) process was investigated through fatigue lifetime and fatigue crack propagation rate tests. The grain structure of the material was refined from 19.2 ${\mu}m$ to 2.3 ${\mu}m$ after 6 passes of ECAP at 493 K. The yield strength(YS) and ultimate tensile strength (UTS) increase after two passes but decrease with further pressing, although the grain size becomes finer with increasing pass number. The softening effect due to texture anisotropy overwhelmed the strengthening effect due to grain refinement after 2 passes. A large enhancement in fatigue strength was achieved after two ECAP passes. The current finding suggests that two passed material is better than the multi-passed material in view of the static strength and fatigue performance.
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참고문헌 (8)
참고문헌 신청
B. L. Mordike / 2001 / Magnesium Propertiesapplications-potentials / Mater Sci. Eng. A302:37~45
R. Z. Valiev / 2006 / Principles of Equalchannel Angular Pressing as a Processing Tool for Grain Refinement / Progress in Materials Science 51(7):881~981
S. M. Masoudpanah / 2010 / The Microstructure, Tensile, and Shear Deformation Behavior of an AZ31 Magnesium Alloy after Extrusion and Equal Channel Angular Pressing / Materials & Design 31(7):3512~3517
H. K. Kim / 2004 / Microstructural Instability and Strength of an AZ31 Mg Alloy After Severe Plastic Deformation / Materials Science and Engineering A 385(1):300~308
Y. Iwahashi / 1998 / The Process of Grain Refinement in Equal-channel Angular Pressing / Acta Materialia 46(9):3317~3331
R. Z. Valiev / 2006 / Principles of Equalchannel Angular Pressing as a Processing Tool for Grain Refinement / Progress in Materials Science 51(7):881~981
S. M. Masoudpanah / 2010 / The Microstructure, Tensile, and Shear Deformation Behavior of an AZ31 Magnesium Alloy after Extrusion and Equal Channel Angular Pressing / Materials & Design 31(7):3512~3517
H. K. Kim / 2004 / Microstructural Instability and Strength of an AZ31 Mg Alloy After Severe Plastic Deformation / Materials Science and Engineering A 385(1):300~308
Y. Iwahashi / 1998 / The Process of Grain Refinement in Equal-channel Angular Pressing / Acta Materialia 46(9):3317~3331
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