Friction Welding Of 6061 Aluminum Alloy With Ysz-Alumina Composite For Improved Mechanical And Thermal Properties

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dc.contributor.authorBasheer, Uday Mowafak
dc.date.accessioned2019-02-15T08:24:23Z
dc.date.available2019-02-15T08:24:23Z
dc.date.issued2013-02
dc.description.abstractIn the present work, three main dissimilar materials were used in friction welding i.e. 6061 aluminum alloy joined to pure alumina, alumina-25 wt. % YSZ and alumina-50 wt. % YSZ. The ceramic systems were fabricated by slip casting and subsequently sintered at 1600 ºC, while the metal aluminum alloy was cut and polished. The diameter of both the ceramic and metal rods was 16 mm. The effects of friction welding process parameters (rotational speed, friction time, joint geometry and applied pressure) on the dissimilar material joints characteristics were evaluated. The thermal analysis of base materials plays an important role in the possibility of friction heat generation and increasing the friction temperature between two surfaces. The results in this study showed that pure alumina was able to be friction welded to 6061 aluminum alloy at rotational speeds between 1250 and 2500 rpm, while alumina-25, 50 wt. % YSZ were joined at lower rotational speeds (630 rpm to 900 rpm). It was also observed that joint between alumina – 25 wt % YSZ composite and 6061 aluminum alloy at lower rotational speed of 630 rpm produced the highest joint strength but lower microhardness with good microstructure as compared to the other ceramic components joint. On the other hand, the mechanical strength of friction-welded pure alumina / 6061 aluminum alloy components was affected by the rotational speed which increases in strength with increasing rotational speed. The effect of rotation speed, joint geometry, friction time, applied friction pressure and degree of deformation appears to be high on the 6061 aluminum alloy than on the ceramic part.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/7745
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectFriction Welding Of 6061 Aluminum Alloyen_US
dc.subjectYsz-Alumina Compositeen_US
dc.titleFriction Welding Of 6061 Aluminum Alloy With Ysz-Alumina Composite For Improved Mechanical And Thermal Propertiesen_US
dc.typeThesisen_US
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