Comparative Study of Microstructure and Texture of Cast and Homogenized TX32 Magnesium Alloy After Hot Deformation

C. Dharmendra; K. P. Rao; Y. V. R. K. Prasad; N. Hort; K. U. Kainer

추천

검색

자료유형: 학술저널

저자정보: C. Dharmendra K. P. Rao Y. V. R. K. Prasad N. Hort K. U. Kainer

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.21 No.1

발행연도: 2015.1

수록면: 134 - 146 (13page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

The effect of homogenization on the hot deformation behavior and texture evolution of Mg-3Sn-2Ca (TX32)alloy is investigated. The cast-homogenized alloy samples were hot compressed in the temperature and strainrate ranges of 300-500 °C and 0.0003-10 s-1,respectively, and a processing map has been developed by using theflow stress data. The map revealed two dynamic recrystallization (DRX) domains with a peak efficiency of 44%at 360 °C/0.0003 s-1(Domain 1) and 43% at 485 ○C/0.1 s-1(Domain 2). When compared with the map for as-castcondition, it is observed that both the domains moved towards higher temperatures although the shift ofDomain 1 is more noticeable. The apparent activation energy values in the two domains and the regime of flowinstability are nearly unchanged by homogenization, suggesting that Mg2Ca and CaMgSn particles in themicrostructure are thermally stable. Specimens deformed under conditions in Domain 1 have high Schmid factorsfor {0001} <1120> basal slip and {1100} <1120> prismatic slip, while in Domain 2 the deformation progresseddue to {112 2} <112 3> second-order pyramidal slip.

#alloys #Homogenization #Hot working #Microstructure #Texture

참고문헌 (33)

참고문헌 신청

M. Avedesian / 1999 / ASM Speciality Handbook:Magnesium and Magnesium Alloys / ASM Interational :78~84

K. U. Kainer / 2003 / Magnesium Alloys and Technologies / WILEY-VCH Verlang GmbH & Co. KG aA :1~22

C. C. Huang / 2004 / Mater. Trans. Japan Inst. Metals 45:3142

J. H. Park / 2013 / Role of Tension Twins on Warm Deformation Behavior of AZ31 Mg Alloy / Metals and Materials International 19(3):389~398

S. B. Yi / 2006 / Mater. Sci. Eng. A 424:275

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!