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Surface Waves at Ultrasonic Frequencies by E G Cook and H E VanValkenburg
Correlation of Gamma Radiography and Magnaflux Indications in the Inspection of Large Cast
Flash XRay Studies of Fuie Performance by E L Criscuolo and D T OConnor
16 tank 20 tank 39 tank A-in Address all communica Allis-Chalmers aluminum Arcair gouging ASTM Headquarters beam search betatron bore cent circular seam Correlation crack crystal destructive test diameter energy fects Figure firing pin flash fluoros fluoroscope forging procedure fusion defect fuze gamma graph grains H-in ingot inspec J-in juncture lack of fusion lack of penetration lack-of-fusion defect lj-in located Magnaflux main seam welds methods Naval Ordnance Laboratory non-destructive test NOTE.—DISCUSSION obtained PAPER IS INVITED Particle Displacement Peak-to-Peak Reflectoscope plate segregation plugs were taken Poisson's ratio porosity Projectile Race St radio radiographic inspection reflecto Reflectogram reflectoscope data reflectoscope indications reflectoscope inspection scope indication Seam 23B Seam 56TL search unit serious defects shaft showing slag inclusion shown in Fig sonic test Sperry spheres spot indication steel surface waves technique test plate tions to ASTM trepan plugs tube ultrasonic reflectoscope ultrasonic testing velocity ratios vertical seam weld bead weldments