Interfacial Microstructural and Corrosion Characterizations of Friction Stir Welded AA6061‑T6 and AISI304 Materials

Raju Prasad Mahto; Sharath Anishetty; Arnab Sarkar; Omkar Mypati; Surjya Kanta Pal; Jyotsna Dutta Majumdar

추천

검색

자료유형: 학술저널

저자정보: Raju Prasad Mahto (Indian Institute of Technology Kharagpur) Sharath Anishetty (Indian Institute of Technology Kharagpur) Arnab Sarkar (Indian Institute of Technology Kharagpur) Omkar Mypati (Indian Institute of Technology Kharagpur) Surjya Kanta Pal (Indian Institute of Technology Kharagpur) Jyotsna Dutta Majumdar (Indian Institute of Technology Kharagpur)

저널정보: 대한금속·재료학회 Metals and Materials International Metals and Materials International Vol.25 No.3

발행연도: 2019.1

수록면: 752 - 767 (16page)

이용수

📌

연구주제

📖

연구배경

🔬

연구방법

🏆

연구결과

초록· 키워드

오류제보하기

The use of aluminum in conjunction of steel can reduce the weight of structures but dissimilar materials welded structureresults in the formation of intermetallic compounds and inhomogeneous distribution of grains. Since aluminum is moreactive than the steel, the structures made from such dissimilar materials can be affected from corrosion medium which needsto be investigated. In the present work, friction stir welding has been used to join AA6061-T6 and AISI304 in lap configuration,each having a thickness of 1 mm under varied process parameters. The detailed investigations have been made whichincludes understanding the effect of process variables on microstructures, intermetallic compounds and their phases, andthereby on corrosion of the aluminum-steel welded joint. SEM with integrated EBSD detector and XRD analyses have beencarried out to characterize the weld interface that revealed the evolution of grain boundaries and existence of phases suchas Fe2Al5and AlCrFe2. The grain size of the weld zone has been found to be decreasing with increase in weld speed andplunge depth. The temperature profiles have shown a faster rate of heating and cooling with increase in welding speed andplunge depth which led to the refinement of microstructure. The evolution precipitates mainly comprised of Al, Mg and Sias the major elements. The corrosion rate was found to be increasing with decrease in grain size. Samples were corroded bypitting corrosion, inter-granular corrosion, and environmental corrosion. Severity of pits have been found to be non-uniformin the along weld cross-section.

#Intermetallic compound · Corrosion · EBSD · Dissimilar material joining · TEM · Friction stir welding

참고문헌 (0)

참고문헌 신청

참고문헌이 DBpia에서 서비스 중이라면, [참고문헌 신청]을 통해 등록해보세요

함께 읽어보면 좋을 논문

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