... of Nd 2 O 3 promoted the formation of a uniform and refined microstructure of the cladding coatings, and a well-defined structure was obtained when the added Nd 2 O 3 content was 2 wt%. The microhardness of the cladding coating obviously improved by 3 to 4 fold above that of the Ti–6Al–4V substrate...

... was made. X-ray diffraction analysis showed less decarburization of the nanocrystalline coating and a more homogeneous coating structure than the microcrystalline coating produced under the same spraying conditions. The mechanical assessment of the coatings was performed using microhardness and indentation...

... associated with the weld region were not present and that the weld region was not the predominate site of fracture initiation. 03 01 2009 25 07 2009 17 02 2010 17 02 2010 compressive strength induction heating internal stresses microhardness quenching (thermal) steel...

.... The elastic-plastic response of the superficial layers affected by the shot peening treatments has been derived through reverse strain axial testing combined with microhardness tests and implemented in the FE model. The proposed numerical/experimental approach is able to satisfactorily predict the residual...

... a midcourse between these two flow lines. A relationship between the local microhardness of the material and its flow stress was established and visioplasticity was employed for the determination of local strains in the deformation region. Data were obtained for six situations resulting from the combinations...

... steels were welded with a 4 kW diode laser. Mechanical properties of welds and parent metals were assessed by tensile and limiting dome height tests, and related to microhardness distribution across the welds. The formability of HSLA welds was insensitive to the welding process and comparable...

... Vickers hardness elastic moduli crystallisation elasticity elastoplasticity microcracks scanning electron microscopy microhardness electrochemical synthesis ceramic porosity scanning electron microscopy (SEM) hardness nanoscale The growth of anodic alumina (aluminum oxide) films...

... testing, metallographic study, and microhardness measurement. In particular, circular TWBs with different radii and cutoff widths were designed where all the welds were located in the center of the blanks and perpendicular to the principal strain direction. Nd:YAG laser butt-welding was used to weld...

... particle reinforced composites microhardness Vickers hardness tensile testing tensile strength internal stresses corrosion testing corrosion oxidation fracture surface structure Corrosively Degraded SiCp/Al, Tensile Properties Regression Analysis Empirical Equation Mechanical...

...A. A. Elmustafa; A. A. Ananda; W. M. Elmahboub α-brass and aluminum microhardness and deep nanoindentation data when fitted to the Taylor dislocation-hardening (TDH) model produced a straight-line behavior consistent with the model. Literature data, including copper, silver, and tungsten when also...

.... This is responsible for the failure upon tensile loading, and attributed to the loss of strength and ductility of the welded blank on a macroscopic scale. 5 Microstructure of the base 6061 alloy Figure 6 shows the microhardness profile across the weld bead. The microhardness value was dependent...

... distribution can be used to analyze microhardness experiments on Al 2 O 3 ceramics for which K c min = 0 and K c max < + ∞ 16 . By assuming no spatial correlation in the site toughness, the probability, P a , b , that a crack may...