논문 해외 국제전문학술지(SCI급) Hot metal pressing joining of carbon fiber reinforced plastic to AZ31 Mg alloy and the effect of the oxide surface layer on joint strength
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2019-10
- 저자명 김정한,Arkhurst Barton Mensah,Lee, MY (Lee, Mok-Young)
- 학술지명 APPLIED SURFACE SCIENCE
- 발행처명 ELSEVIER SCIENCE BV
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 3
홈페이지논문 초록 (Abstract)
In this study, a new material joining process called hot metal pressing (HMP) was developed. The feasibility, nature and mechanisms of this process were investigated for joining carbon fiber reinforced plastic (CFRP) and an AZ31 Mg alloy. Two sets of joint specimens were prepared, one set with as-received Mg sheets, and the other with Mg alloy sheets that had been annealed for different duration times. It was observed that an oxide layer, introduced on the surface of the Mg alloy by the annealing, had a significant influence on the bonding strength of the joints. Tensile shear test results showed that a high strength joint of approximately 5.1 kN could be achieved. Bubble formation and the decomposition of the CFRP near the joint interface was observed on the joints with the as-received Mg alloy sheets, but was not observed on the joints that had oxide layers on the Mg alloy sheets after annealing. Moreover, the oxide layer grew into the CFRP near the joint interface for joints with the annealed Mg alloy sheets, indicating the possibility of mechanical anchoring effects which greatly enhanced the joining strength. (C) 2017 Elsevier B.V. All rights reserved.