Bethlehem Steel

About: Bethlehem Steel is a based out in . It is known for research contribution in the topics: Coating & Corrosion. The organization has 1529 authors who have published 1559 publications receiving 19098 citations. The organization is also known as: Bethlehem Steel Corporation.

The Enriched Element for Finite Element Analysis of Three-Dimensional Elastic Crack Problems

Abstract: An improved procedure for enriching three-dimensional isoparametric elements with the asymptotic crack front solution is described. Results from finite element calculations, involving these enriched elements, for the three-dimensional problems of a straight crack in plane strain and an axisymmetric penny-shaped crack which demonstrate the high degree of accuracy attainable are presented. Some finite-element solutions for through-crack and surface flaw problems are then reported showing the influence of a free surface on the variation of the stress intensity along the crack edge. Special treatments of the crack front-free surface stress intensity are implemented and the results discussed.

Highway guard structure

Abstract: My invention relates totimprovements in guard structures for highways. One object of my invention is to provide an improved highway guard structure which will effectively resist impacts transmitted thereto by travelling vehicles coming into contact with the guard rail and thereby prevent the...

Method for recovering vanadium-values from vanadium-bearing iron ores and iron ore concentrates

Abstract: Method for extracting vanadium-values from vanadium-bearing iron ores and/or iron ore concentrates including mixing the iron ores and/or iron ore concentrates with a calcium containing material, roasting the mix in an oxidizing atmosphere at a temperature for a time to produce calcium vanadates, comminuting the roasted mix and leaching the comminuted roasted mix in an aqueous solution containing carbonate or bicarbonate compounds to produce vanadates which are readily soluble in the aqueous leaching solution and simultaneously producing substantially insoluble calcium carbonate or calcium bicarbonate which remains as part of the undissolved residue containing iron-values. The vanadate-rich aqueous leaching solution is separated from the undissolved residue containing iron-values and treated by known methods to recover the vanadium-values. The undissolved residue can be processed to recover the iron-values.

As-worked bainitic ferrous alloy and method

Abstract: THIS INVENTION RELATES TO AN AS-WORKED BIANITIC FERROUS ALLOY AND TO A NOVEL METHOD OF PROCESSING SAME TO OBTAIN OPTIMUM STRENGTH AND TOUGHNESS. MORE PARTICULARLY, THIS INVENTION IS DIRECTED TO THE HOT WORKING CYCLE OF A FERROUS ALLOY CHARACTERIZED BY AN I-T DIAGRAM OR S CURVE HAVING A DOUBLE NOSE OR A PEARLITE TRANSFORMATION KNEE OF THE BEGINNING CURVE ABOVE A BROAD BIANITIC BAY REGION. SUCH AN ALLOY IS HEATED TO AN AUSTENITIZING TEMPERATURE OF ABOUT 1500* TO 2200*F., AND SUBJECTED TO A PLURALITY OF WORKING OPERATIONS AT SUCCESSIVELY LOWER TEMPERATURES, WHERE THE FINAL WORKING OPERATION IS CONDUCTED AFTER THE BEGINNING OF THE AUSTENITE TRANSFORMATION TO BAINITE AND BEFORE THE COMPLETE TRANSFORMATION THEREOF.