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Surface microstructure of gas atomized ASP30 powder (a),
and cross sectional microstructures of T15 powder (b) and 10V powder (c)
Fig. 2. Optical micrograph of as-HIPed ASP30 billet
Fig. 3. As-HIPed SEM micrographs : a) T15, b)ASP30, c) Rex20, d) 10V, e) Rex25
Fig. 4. SEM micrographs of billets af
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surface, heat affected zone, and the substrate for first trial. (Etched by 2% Nital)
Fig. 8. Optical micrographs of hardfacing layer from surface, heat affected zone, and the substrate for fourth trial. (Etched by 2% Nital)
Fig. 9. Cross sectional microhardness distributions for each hardfacing laye
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metal
R ``=`` {(n_R ``-`` 1)^2 ``+`` n_I^2} over {(n_R ``+`` 1)^2 ``+`` n_I^2}
(in the case of normal incidence)
4.10 The Stokes Treatment of Reflection and Refraction
the principle of reversibility :
A ray going from P to S will trace the same route as one from S to P.\"
E_i `t `t\' ``+`` E_i `r `r
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