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논문 기본 정보

자료유형
학술저널
저자정보
Hee-Seon Bang (Chosun University) Han-Sur Bang (Chosun University) Kyoung-Hak Kim (Chosun University)
저널정보
대한용접·접합학회 대한용접·접합학회지 大韓熔接·接合學會誌 第39卷 第2號
발행연도
2021.4
수록면
189 - 197 (9page)

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초록· 키워드

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The dissimilar joining of aluminum (Al) alloy and steel has become attractive in the automotive sector to achieve lightweight components. However, joining Al to steel using conventional fusion welding processes is difficult because of their widely varying thermo-physical properties and the formation of intermetallic compounds (IMCs) at the Al-Fe joint interface. In the present study, the dissimilar joining of a 2.5 ㎜ thick AA5052-H32 and a 1.4 ㎜ thick DP590 steel sheet was performed using friction stir welding (FSW). Moreover, the effects of the process parameters on the mechanical properties and microstructure of FS welds was investigated. The tensile test results indicated that a higher heat input with increasing rotation speed and decreasing travel speed contributed to a higher tensile strength. The maximum tensile strength of the FS welds was 178 MPa, which exhibited a joint efficiency of approximately 79%. As a result of scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS) and X-ray diffraction (XRD) analysis, a thin interfacial layer of less than 1 μm thickness comprising Fe₄Al<SUB>13</SUB> IMC was observed at the dissimilar Al-Fe joint interface.

목차

Abstract
1. Introduction
2. Materials used and Experimental method
3. Results and discussion
4. Conclusion
References

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