... ,” Mater. Des. , 31 , pp. 761 – 771 . 10.1016/j.matdes.2009.08.001 [23] Robson , J. D. , Cui , S. , and Chen , Z. W. , 2010 , “ Incipient Melting During Friction Stir Processing of AZ91 Magnesium Castings ,” Mater. Sci. Eng. A , 527 , pp. 7299 – 7304 . 10.1016/j.msea.2010.07.093...

... of nanocomposite dispersion and morphology on the dynamic behavior, another nanocomposite was prepared by melt mixing of polypropylene and a modified montmorillonite (dellite) (PP dellite). The dynamic property results for PP-nanocor show an increase of both Young’s modulus and yield stress with the increasing...

... ) + exp ( E ⋅ ε ̇ / ε ̇ 0 ) ] [ 1 − ( T − T ref ) / ( T m − T ref ) ] m , where σ is the flow stress, ε is the strain, ε ̇ is the strain rate, ε ̇ 0 is the reference strain rate, T is the temperature, T ref is the reference temperature, T m is the melting temperature, and A , B , C , D , E , and m...

... spectroscopy, microindentation, and nanomechanical tester. The dendrite structure exists at the fusion zone. The partially melted zone is found near the fusion line. The tensile tests show that the welded alloy exhibits lower strength and ductility than the base alloy, and failure occurs at the partially...

...Stuart Barnes; Michael J. Nash; Y. K. Kwok A 1200 W diode laser was used to modify the surface properties of a fully-sintered ferrous PM material. Two modifications were investigated; transformation hardening of selected areas and sealing of surface porosity by re-melting. The diode laser was used...

... internal stresses fatigue carbon steel melting heat treatment moire fringes light interferometry Spot welding, or resistance spot welding, involves the joining of two or more pieces of sheet metal in localized areas or spots where melting and coalescence of a small volume of material occurs...