Non-metallic inclusions are the impurities that solidified during steel continuous casting. The compositions, sizes and shapes of significantly affect steels' mechanical properties such as ductility, formability toughness. This paper mainly focuses on observation characterization non-metallic in high strength low alloy steels, especially is devoted to homogenization molten within copper mold ca...

The clinical and metallurigical characteristics of five cast cobalt-chromium-molybdenum alloy femoral hip prostheses which failed in vivo were evaluated. The devices included: two of the Howmedica Muller-Charnley design, two of the Howmedica Charnley design, and one of the Zimmer Aufranc-Turner design. Fractographic analyses demonstrated that the five devices had failed by fatigue which origina...

High turbulence at the liquid steel−mold flux interface results in mold entrapments, which can generate nonmetallic inclusions during ingot‐casting process. Those are detrimental to final steel quality. The teeming process ingot casting is typically conducted using uphill method. authors propose a novel alternative method side process, decreases free surface. To define optimum operational condi...

A theorem of this paper proves that if the size distribution of random spheres is generalized gamma, its Wicksell transform and other related distributions belong to the domain of attraction of the Gumbel distribution. The theorem also shows the attraction coefficients of the distributions. The fatigue strength of high-strength steel is closely related to the maximum size of nonmetallic inclusi...