National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
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Page v
... Percentages of Nonmetallic Inclusions 8 C. Estimation of the Weight Percent of Inclusions 8 a . Estimation of Number and Size of Inclusions 8 e . Mean Free Path Between Inclusions 9 5.3 . Analysis of the Etched Structure in NBS - 461 ...
... Percentages of Nonmetallic Inclusions 8 C. Estimation of the Weight Percent of Inclusions 8 a . Estimation of Number and Size of Inclusions 8 e . Mean Free Path Between Inclusions 9 5.3 . Analysis of the Etched Structure in NBS - 461 ...
Page 2
... percentage in the steel , the mean free path between them , and some idea of their number and size distribution ... percentages in the worked structure of the steel , ( b ) the mean free path for ferrite and pearlite , and finally ( c ) ...
... percentage in the steel , the mean free path between them , and some idea of their number and size distribution ... percentages in the worked structure of the steel , ( b ) the mean free path for ferrite and pearlite , and finally ( c ) ...
Page 6
... percentage , the mean free path in microns for ferrite and pearlite , and the grain size . Furthermore , from the mean free path data and from the manner in which the photomicrographs were prepared , data for a grain size determination ...
... percentage , the mean free path in microns for ferrite and pearlite , and the grain size . Furthermore , from the mean free path data and from the manner in which the photomicrographs were prepared , data for a grain size determination ...
Page 8
... percentage of inclusions was 0.38 percent . The three 100X pictures taken near the edge gave an average volume percentage of 0.42 percent . Obviously , no appreciable gradient was found , and the six pictures were then taken as ...
... percentage of inclusions was 0.38 percent . The three 100X pictures taken near the edge gave an average volume percentage of 0.42 percent . Obviously , no appreciable gradient was found , and the six pictures were then taken as ...
Page 9
... percentage derived from a photo- lower than the actual ferrite percentage . As an illus- micrograph of the etched structure can be very much tration for a steel with an ASTM grain size number of 6.0 , the average grain diameter is given ...
... percentage derived from a photo- lower than the actual ferrite percentage . As an illus- micrograph of the etched structure can be very much tration for a steel with an ASTM grain size number of 6.0 , the average grain diameter is given ...
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acid solution add 10 ml aliquot alloy ammonium Analytical Analytical curve assay average beaker boil Bureau of Standards butyl acetate calibration carbon Cartridge Brass cents chemical shift chill-cast chromium composition Cool copper Copper-Base Spectrochemical Standards COPPER-BASE STANDARDS determination dilute Dissolve electrolyte electron probe electron probe microanalysis elements Erlenmeyer flask ferrite Figure filter free-cutting brass fumes glass grain heat homogeneity inclusions Institute for Materials Laboratory Low-Alloy Steel manganese Materials Research mean free path measurement metal method microns ml of H2SO4 ml of HNO3 ml of water Mossbauer National Bureau NBS Misc NBS Miscellaneous Publication NBS Spectrometric nickel nitric acid obtained oxide paper pearlite percent photometric precipitate procedure Publ Reagents sodium sodium nitroprusside spectrometer standard deviation Standard Reference Materials sulfate sulfuric acid Technology titration Transfer uranium Vacuum fusion values vanadium viscosity volumetric flask wash weight white cast iron x-ray zinc