Laser microwelding was used to join, for the first time, superelastic NiTi biomedical PtIr which can be in multicomponent devices. By process optimization, it possible control formation of B2 NiTiPt phase, with no intermetallic compounds being formed. The phase inside fusion zone had a strong metallurgical bonding base material due smooth transition its grain orientation towards ?111? NiTi. maj...

Abstract There are several possibilities for establishing a cohesion joint between dissimilar metals. In the case of thin sheets, ultrasonic welding process is suitable. This can establish rapidly, with low heat input sheets. The authors have tried to determine optimal parameters copper and austenite stainless steel joining by using an experimental method joining. Suitable results were obtained...

Welding of dissimilar magnesium alloys and aluminum alloys is an important issue because of their increasing applications in industries. In this document, the research and progress of a variety of welding techniques for joining dissimilar Mg alloys and Al alloys are reviewed from different perspectives. Welding of dissimilar Mg and Al is challenging due to the formation of brittle intermetallic...

Welding technology of cast steel G18CrMo4+QT with structural S355J2+N is a welding dissimilar steels. The problem iron the phenomenon hardening structure due to presence unreleased martensite, which results in lower toughness and formation cold cracks. On other hand, S355J2+N, depending on thickness material, also prone appearance In order prevent cracks eliminate residuals stresses, it necessa...

Friction stir welding is a relatively new solid state joining process, which is suitable for welding similar and dissimilar materials.  The present research work concentrates on the effect of tool rotational speed on the tensile, microstructural properties and microhardness of the friction stir welded joints of different grades of austenitic stainless steel sheets. Four different tool rotationa...