... good correlations have been found between some OES-PDA indexes and the macro-cleanliness index obtained applying the Stahl-Eisen-Prüfblätter standard, SEP 1927. macro-cleanliness ultrasonic testing optical emission spectroscopy with pulse discrimination analysis (OES-PDA) bearing steel...

... system includes hardware and software linkages between the two sensing modalities with feedback both from the mechanical testing device as well as from other complementary NDE methods including ultrasonic testing (UT) and infrared thermography (IRT). This hybrid monitoring approach targets the early...

... the importance of assuring clean steel. Ultrasonic data from several configurations of samples as well as reduction ratios will demonstrate the importance of a tightly controlled evaluation program. steel cleanness ultrasonic testing inclusions fatigue life steel suppliers process evaluation Jerry...

... of the distribution of these inclusions used to be feasible only by extraction method such as acid-solution procedure. It has been found that ultrasonic testing with 50 to 12S MHz frequency, focus-type transducers is suitable to evaluate the inclusions where the echo intensity is proportional to inclusion diameter...

... obtained from some leading customers and collaborators are presented. Antifriction bearings ultrasonic testing steel-making titanium oxygen S. Ganguly, 1I. Chakrabarti, 2M. D. Maheshwari, 3and T. Mukherjee4 Ultra Clean Steel For Anti-Friction Bearing Applications Reference: Ganguly, S...

... of magnitude steel cleanness improvement, and nearly 20 times bearing performance improvement over the past 15 years. ultrasonic testing clean bearing steel steelmaking steel cleanness fatigue life test James A. Eckel 1, Peter C. Glaws 1, Jerry O. Wolfe 1, and Bonnie J. Zorc 1 CLEAN ENGINEERED...

... as inclusion size distributions are log-normal. By employing a destructive, laboratory ultrasonic test procedure valuable insights into the frequency, the size distribution and the composition of large deoxidation products can be gained. In this context, large inclusions are in the intermediate size range...

.... It is characterized by a fracture appearance similar to that of flaking when broken open, by orientation and distribution similar to flaking, but within a specific section of a large forging, generally in ultrasonic test response and by its good response to healing during reforging, as with flaking. Case histories...

... piping forging ultrasonic testing Franqoise Morin 1, Pierre Bocquet2 and Alain Cheviet3 FORGING TECHNOLOGY ADAPTED TO THE MANUFACTURE OF NUCLEAR PWR AUSTENITIC PRIMARY PIPING REFERENCE : Morin F., Bocquet P. and Cheviet A., "Forging Technology Adapted to the Manufacture of Nuclear PWR Austenitic...

... characterization incorporated ultrasonic and radiographic methods. Computerized and manual ultrasonic testing from both sides of the test panels provided accurate information on the damaged area. The findings were confirmed by a destructive X-ray microfocus technique combined with an opaque penetrant for damage...

... limitations of the Fokker Mark II Bondtester for assessing the cohesive strength of a bond were explored. adhesives elastic moduli nondestructive evaluation bondtester ultrasonic testing receptance model cohesive failure Anthony N. Sinclair, Phineas A. Dickstein, Jan K. Spelt, Emanuel Segal...

... by hydrogen, without measuring the thickness of material tested. ultrasonic testing wave velocity hydrogen attack Young's modulus shear modulus Poisson's ratio carbon steel low alloy steel decarburization microcracks nondestructive tests Takeharu Watanabe, 1 Yuzo Hasegawa, 1and Kazumasa...

... and distinguishing between the flakes and other types of discontinuities, specifically nonmetallic inclusions. ultrasonic testing immersion high sensitivity longitudinal and shear wave (angle beam) transducer test block nonmetallic inclusion hydrogen flakes John G. Gensure, t Albert S. Melilli, 2...

...-glass epoxy failure criteria first-ply failure ultrasonic testing spin testing Ronald P. Nimmer, ^ Kevorc A. Torossian, ^ and John S. Hickey^ Fabrication and Spin Tests of Tliick Laminated S2-Glass Flywheel Disks REFERENCE: Nimmer, R. P., Torossian, K. A., and Hickey, J. S., "Fabrication...

... inspection quality assurance adhesive bonds composites composite materials fiber reinforced plastics fiberglass bond-joint strength FRP assemblies bond strength evaluation ultrasonic testing sonic inspection bond testing G. B. Chapman IP A Nondestructive Method of Evaluating Adiiesive Bond...

... inspection methods. automatic test equipment computer aided machining system computer aided manufacturing computer controlled testing computerized testing dimensional measurement nondestructive testing powder metallurgy parts ultrasonic testing adaptive control automation computers data...

... testing of soil materials to be conducted rapidly and easily. dynamic testing ultrasonic testing soil dynamics soils R. W. Stephenson^ Ultrasonic Testing for Determining Dynannic Soil Moduli REFERENCE: Stephenson, R. W., "Ultraioiilc Testing for Detennlnlng Dynamic Soil Modnli," Dynamic...

... is discussed, and, further, electron micrography is applied to study the early stages of erosion. cavatition erosion metals electron microscopy ultrasonic testing evaluation tests G. C. Gould ~ Some Observations on Erosion by Cavitation and Impingement REFERENCE: Gould G. C., " S o m e O b s e r...