SYMPOSIUM ON
BRITTLE FAILURE OF
ROTOR FORCINGS
Presented at
Special Meeting for Delegates to World Metals Congress
AMERICAN SOCIETY FOR TESTING MATERIALS
Philadelphia, Pa., 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, Pa.
CONFERENCE ON LARGE ROTOR FORCINGS
ASTM HEADQUARTERS, PHILADELPHIA, NOVEMBER 11, 1957
(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, Pa.
(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.,
Schenectady, N. Y.
(6) Clarence J. Boyle, General Electric Co.,
Schenectady, N. Y.
(7) Howard G. Grim, Heppenstall Company,
Pittsburgh, Pa.
(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 Co., Milwaukee, Wise.
(12) John E. Steiner, United States Steel Corp.,
Pittsburgh, Pa.
(13) Charles W. Grater, United States Steel
Corp., Pittsburgh, Pa.
(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, Pa.
(18) Lloyd R. Cooper, Heppenstall Co., Pittsburgh, Pa.
(19) J. G. M. Turnbull, Chief Chemist, C. A.
Parsons and Co., Ltd., New-Castle-Upon-Tyne,
England.
(20) Pierre Henry, Societe des Usines SaintJacQues, Paris, France.
(21) W. M. Renshaw, Midvale-Heppenstall Co.,
Philadelphia, Pa.
(22) Paul Ffield, Bethlehem Steel Co., Bethlehem,
Pa.
(23) Thomas G. Foulkes, Bethlehem Steel Co.,
Bethlehem, Pa.
(24) R. E. Peterson, Westinghouse Research
Laboratories, Pittsburgh, Pa.
(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
Co., Milwaukee, Wise.
(28) T. R. Middleton, English Steel Corporation,
Ltd., Sheffield, England.
(29) William E. Trumpler, Westinghouse Electric
Corp., Lester, Pa.
(30) H. David Emmert, Allis-Chalmers Manufacturing Co., Milwaukee, Wise.
(31) Adolph O. Schaefer, Pencoyd Steel and
Forge Corp., Philadelphia, Pa.
(32) Dr. Ing. W. Broehl, Director, Metallurgical
and Research Dept., Klockner-Georgsmarienwerke Akt., Osnabruck, Germany.
(33) Norman L. Mochel, Westinghouse Electric
Corp., Lester, Pa.
(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,
Pa.
(39) Dolph G. Ebeling, General Electric Co.,
Schenectady, N. Y.
(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, Pa.
(43) Robert B. Corbett, Midvale-Heppenstall Co.,
Philadelphia, Pa.
(44) E. W. Consterdine, Metropolitan Vickers
Electrical Co., Ltd., Manchester, England.
(45) Donald W. Gunther, Westinghouse Electric
Corp., East Pittsburgh, Pa.
(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.,
Schenectady, N. Y.
(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 RedamgeDilling, Paris, France.
(52) Robert N. Hofemeister, Allis-Chalmers
Manufacturing Co., Milwaukee, Wise.
(53) John H. Stoll, Bethlehem Steel Co., Bethlehem, Pa.
(54) Rene A. Baudry, Westinghouse Electric
Corp., East Pittsburgh, Pa.
(55) Edward L. Murphy, United States Steel
Corp., Pittsburgh, Pa.
(56) Dipl. Ing. Rudolf Schinn, Siemens-Schuckertwerke Akt., Miilheimer Werke, MulheimRuhr, 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, Pa.
(60) John A. Succop, Heppenstall Co., Pittsburgh,
Pa.
(61) G. T. Jones, United States Steel Corp.,
Pittsburgh, Pa.
(62) J. W. Caum, ASTM Staff.
(63) Earl S. Evans, Allis-Chalmers Manufacturing Co., Milwaukee, Wise.
(64) M. Worth Acker, Midvale-Heppenstall Co.,
Philadelphia, Pa.
(65) John E. Marsh, Bethlehem Steel Co., Bethlehem, Pa.
(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, Pa.
May, 1958
IV
CONTENTS
PAGE
Introduction—N. L. Mochel
1
Inspection of Large Rotor Forgings—George E. Banner
3
Rotor Forgings for Power Equipment Manufacturers—T. G. Foulkes
10
The Work of the Task Group on Brittle Failure with Respect to Research—
A. O. Schaefer
12
Requirements for Turbine and Generator Rotor Forgings—A. W. Rankin . . . .
16
Influence of Geometric Factors on Results of Ultrasonic Testing of Heavy
Forgings—Helmut Krainer and Ekkehardt Krainer
28
The Axial Test Bore in Turbo-Generator Rotors—K. Kreitz
v
37