SYMPOSIUM ON BRITTLE FAILURE OF ROTOR FORCINGS Presented at Special Meeting for Delegates to World Metals Congress AMERICAN SOCIETY FOR TESTING MATERIALS Philadelphia,, November 11, 1957 Reg. U. S. Pat. Off. ASTM Special Technical Publication No. 231 Price $2.00; to Members $1.60 Published by the AMERICAN SOCIETY FOR TESTING MATERIALS 1916 Race St., Philadelphia 3,
(1) Dr. Ing. Giorgia Rappini, Chief of Control and Research Laboratory, Ansaldo, Societa per Azioni, Stabilimento Meccanico, Genoa, Italy. (2) Robert J. Painter, Executive Secretary, ASTM. (3) Howard Casey, Midvale-Heppenstall Co., Philadelphia, (4) Friedrich K. Goedecke, Chief Engineer, Stahl und Rohrenwerk Reisholz, G.M.B.H., Versucnsanstalt, Dusseldorf-Reisholz, Germany. (5) A. William Rankin, General Electric Co., (6) Clarence J. Boyle, General Electric Co., (7) Howard G. Grim, Heppenstall Company, Pittsburgh, (8) M. C. Caplan, Chief Metallurgist, The General Electric Co., Ltd., Erith, Kent, England. (9) L. Columbier, Direction des Recherches des Usines du Center, Cie des Ateliers et Forges de la Loire, Uniex (Loire), France. (10) (11) Thomas R. Gaulke, Allis-Chalmers Manufacturing (12) John E. Steiner, United States Steel Corp., Pittsburgh, (13) Charles W. Grater, United States Steel Corp., Pittsburgh, (14) Dr. G. Poney, Le Directeur des Laboratories, Institut de Recherches de la Siderurgie, St. Germain-en-Laye (S & O), France. (15) J. Jaegersberger, Gebr. Boehler and Company, Kapfenberg, Austria. (16) W. J. Gannon, General Electric Co., Lynn, Mass. (17) John M. Hodge, United States Steel Corp., Pittsburgh, (18) Lloyd R. Cooper, Heppenstall Co., Pittsburgh, (19) J. G. M. Turnbull, Chief Chemist, C. A. Parsons and Co., Ltd., New-Castle-Upon-Tyne, England. (20) Pierre Henry, Societe des Usines Saint- JacQues, Paris, France. (21) W. M. Renshaw, Midvale-Heppenstall Co., Philadelphia, (22) Paul Ffield, Bethlehem Steel Co., Bethlehem, CONFERENCE ON LARGE ROTOR FORCINGS ASTM HEADQUARTERS, PHILADELPHIA, NOVEMBER 11, 1957 (23) Thomas G. Foulkes, Bethlehem Steel Co., Bethlehem, (24) R. E. Peterson, Westinghouse Research Laboratories, Pittsburgh, (25) Dr. H. H. Burton, Director of Research, English Steel Corp., Ltd., Sheffield, England. (26) Dr. A. Wicher, Dortmund-Horder Huttenunion, Akt., Dortmund, Germany. (27) John Druml, Allis-Chalmers Manufacturing (28) T. R. Middleton, English Steel Corporation, Ltd., Sheffield, England. (29) William E. Trumpler, Westinghouse Electric Corp., Lester, (30) H. David Emmert, Allis-Chalmers Manufacturing (31) Adolph O. Schaefer, Pencoyd Steel and Forge Corp., Philadelphia, (32) Dr. Ing. W. Broehl, Director, Metallurgical and Research Dept., Klockner-Georgsmarienwerke Akt., Osnabruck, Germany. (33) Norman L. Mochel, Westinghouse Electric Corp., Lester, (34) Dr. Helmut Krainer, Gebr. Boehler and Co., Akt., Kapfenberg, Austria. (35) Dr. Hajime Nakamura, Ishikawajima Heavy Industries Co., Ltd., Tokyo, Japan. (36) Dr. Masao Kinoshita, Technical Research Laboratory, Hitachi Shipbuilding and Engineering Co., Ltd., Osaka, Japan. (37) F. Buckley, Chief Company Metallurgist, The English Electric Company, Ltd., Rugby, England. (38) Paul E. Busby, Heppenstall Co., Pittsburgh, (39) Dolph G. Ebeling, General Electric Co., (40) Dr. K. Brotzman, Balzers Union Akt., Dortmund, Germany. (41) Dr. Ing. Herbert Ruppik, Balzers Union Akt., Dortmund, Germany. (42) Howard C. Myers, Midvale-Heppenstall Co., Philadelphia, (43) Robert B. Corbett, Midvale-Heppenstall Co., Philadelphia, (44) E. W. Consterdine, Metropolitan Vickers Electrical Co., Ltd., Manchester, England. (45) Donald W. Gunther, Westinghouse Electric Corp., East Pittsburgh, (46) H. M. McLean, Chief Metallurgist, Fraser and Chalmers Engineering Works, The General Electric Company, Ltd., Birmingham, England. (47) Dr. G. C. E. Olds, British Thomson-Houston Co., Rugby, Warwickshire, England. (48) David L. Newhouse, General Electric Co., (49) Dr. Gerd Kroncke, Bochumer-Verein fur Gusstahlfabrikation Akt., Bochum, Germany. (50) R. R. Roberts, British Thomson-Houston Co., Rugby, Warwickshire, England. (51) E. DeKerversau, Chief due Service Metallurgie, Societe des Mines et Usines de Redamge- Dilling, Paris, France. (52) Robert N. Hofemeister, Allis-Chalmers Manufacturing (53) John H. Stoll, Bethlehem Steel Co., Bethlehem, (54) Rene A. Baudry, Westinghouse Electric Corp., East Pittsburgh, (55) Edward L. Murphy, United States Steel Corp., Pittsburgh, (56) Dipl. Ing. Rudolf Schinn, Siemens-Schuckertwerke Akt., Miilheimer Werke, Mulheim- Ruhr, Germany. (57) James Mowat, William Beardmore and Co., Ltd., Parkhead Steel Works, Glasgow, Scotland. (58) M. Portnoi, Chef du Service Etudes et Recherches Alsthom, Societe Generate de Constructions Electriques et Mecaniques, Belfort, France. (59) George E. Danner, Erie Forge and Steel Corp., Erie, (60) John A. Succop, Heppenstall Co., Pittsburgh, (61) G. T. Jones, United States Steel Corp., Pittsburgh, (62) J. W. Caum, ASTM Staff. (63) Earl S. Evans, Allis-Chalmers Manufacturing (64) M. Worth Acker, Midvale-Heppenstall Co., Philadelphia, (65) John E. Marsh, Bethlehem Steel Co., Bethlehem, (66) Dr. Karl R. L. Kreitz, Head of Research Department, Stahl und Rohren Werk Reisholz, Dusseldorf-Reisholz, Germany.
NOTE. The Society is not responsible, as a body, for the statements and opinions advanced in this publication. BY AMERICAN SOCIETY FOR TESTING MATERIALS, 1958 Printed in Lancaster, May, 1958 IV
CONTENTS Introduction N. L. Mochel Inspection of Large Rotor Forgings George E. Banner Rotor Forgings for Power Equipment Manufacturers T. G. Foulkes PAGE 1 3 10 The Work of the Task Group on Brittle Failure with Respect to Research A. O. Schaefer Requirements for Turbine and Generator Rotor Forgings A. W. Rankin... Influence of Geometric Factors on Results of Ultrasonic Testing of Heavy Forgings Helmut Krainer and Ekkehardt Krainer The Axial Test Bore in Turbo-Generator Rotors K. Kreitz 12 16 28 37 v