• Title/Summary/Keyword: 알루미늄 5083

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A Study on the Surface Harding of Aluminum Alloy - TIG Overlay Hardening of Al 5083- (알루미늄합금의 표면강화에 관한 연구 - Al 5083에 대한 TIG overlay 경화 -)

  • 이영호;강원석;이규천
    • Journal of Welding and Joining
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    • v.15 no.1
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    • pp.135-148
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    • 1997

  • It was attempted to improve wear resistance and durability under the load surface pressure that make a formation of the thick (mm-order) hard-surfacing layer for aluminum alloy of 5083. The thick hard layers were formed on the surface of 5083 by TIG overlay method. Al-(25.4, 33.6, 45.7 mass%) Cu filler metals which were newly developed were overlaid on two base metals forming the one bead, one layer and two layers. The investigation was made on the characteristics of hardening and wear resistance in relation to the microstructure of overlaid layers with selection of optimum overlaying condition.

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Mechanical Properties and Microstructure on Dissimilar Friction-Stir-Weld of Aluminium Alloys (FSW된 이종알루미늄합금의 접합 특성 및 미세 조직)

  • Han, Min-Su;Jang, Seok-Ki
    • Journal of Advanced Marine Engineering and Technology
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    • v.35 no.1
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    • pp.75-81
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    • 2011

  • Dissimilar joining of aluminum 6061-T6 alloy to aluminum 5083-O alloy was performed using friction-stir welding technique. The mechanical properties, hardness, macro- and micro-structure on dissimilar friction-stir-weld aluminium alloy were investigated. Mechanical properties of the weld mainly depend on which Al alloy is placed at the retreating sides of the rotating tool respectively during dissimilar friction-stir weld because the microstructure of stir zone was mainly composed of welded Al alloys of the retreating side. Onion ring pattern was observed like lamella structure stacked by each Al alloy in turn. It apparently results in defect-free weld zone that traverse speed was changed to 124 mm/min under conditions of tool rotation speed like 1250 rpm with 5 mm of tool's prove diameter, 4.5 mm of prove length, 20 mm of shoulder diameter, and $2^{\circ}$ of tilting angle. The 231 MPa of ultimate stress and the 121 MPa of yield point are obtained about the friction-stir-welded Al 6061-T6(AS) to Al 5083-O(RS).

  • https://doi.org/10.5916/jkosme.2011.35.1.075 인용 PDF KSCI