Abstract
The thermal stresses generated by nonuniform temperature distribution during the heating of cold large-diameter HASTELLOY alloy X ingots were determined; the stress figures were obtained by way of temperature profiles calculated during representative heating cycles. The thermal stress along the longitudinal axis at the center of the ingot (in tension) was selected as the critical parameter, and a maximum allowable stress of 90 pct of the 0.2 pct yield strength was imposed to avoid fracture. From this analysis, a heating practice which maximizes the in-furnace heating rate and still avoids ingot fracture can be designed.
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References
G. M. Dusinbene:Heat-Transfer Calculations by Finite Differences, pp. 8–18, 64–68, International Textbook Co., Scranton, 1961.
R. Schuhmann, Jr.:Metallurgical Engineering, Vol. 1, pp. 207–34, Addison-Wesley Publishing Co., Reading, Mass., 1952.
P. C. Finlayson and J. S. Schofield:J. Iron Steel Inst., 1959, vol. 193, pp. 238–52.
S. Timoshenko and J. N. Goodier:Theory of Elasticity, pp. 408–10, McGraw-Hill Book Co., New York, 1951.
G. Dieter, Jr.:Mechanical Metallurgy, pp. 58–62, McGraw-Hill Book Co., New York, 1961.
W. D. Nix: April 1958, Materials Science Department, Stanford University, Stanford, Calif.
HASTELLOY Alloy X Bulletin: issued by Materials Systems Division, Union Carbide Corp., Kokomo, Ind., 1968, No. F30.037E.
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Sun, R.C. Determination of the forging-heating schedule or a large “HASTELlOY” alloy X ingot. Metall Trans 1, 1881–1887 (1970). https://doi.org/10.1007/BF02642787
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DOI: https://doi.org/10.1007/BF02642787