Pulsed laser irradiation is employed over a wide spectrum of materials processing applications, including surface hardening, alloying, curing, synthesis of compound and semiconductor films. In semiconductor systems,* it is used to anneal ion-implantation surface damage, recrystallize amorphous and polycrystalline films, and enhance dopant diffusion. Recent studies2 have shown that one of the mo...

This paper presents a new formulation of a well known double hardening model often referred to as the Hardening Soil model. As an alternative to the existing Hardening Soil model’s Mohr-Coulomb failure surface, the new formulation allows for the incorporation of smooth failure surfaces, such as the failure surface proposed by Matsuoka & Nakai or that proposed by Lade & Duncan. Although the inco...

The surface characterization of materials after Robot Laser Hardening (RLH) is a technically demanding procedure. RLH commonly used to harden parts, especially when subject wear. By changing their properties, this treatment can offer several benefits such as lower costs for additional machining, no use cooling agents or chemicals, high flexibility, local hardening, minimal deformation, accuracy...

During many manufacturing processes for surface treatment of steel components heat will be exchanged between the environment and workpiece. The exchange commonly leads to temperature gradients within near area workpiece, which involve mechanical strains inside material. If corresponding stresses exceed locally yield strength material residual can remain after process. increase is high enough ad...