National Bureau of Standards Miscellaneous PublicationU.S. Government Printing Office, 1964 |
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Page 1
... alloy of iron and carbon where the carbon content is between 1.7 and 4.5 percent . This is more carbon than can be retained in austenite at the eutectic temperature ; hence on slow cooling the casting normally will exhibit a matrix of ...
... alloy of iron and carbon where the carbon content is between 1.7 and 4.5 percent . This is more carbon than can be retained in austenite at the eutectic temperature ; hence on slow cooling the casting normally will exhibit a matrix of ...
Page 5
... alloy . However , trace quantities of some elements , not normally impurities , may be added deliberately to enhance the alloy performance . Of further concern to the chemical composition require- ments with respect to trace elements is ...
... alloy . However , trace quantities of some elements , not normally impurities , may be added deliberately to enhance the alloy performance . Of further concern to the chemical composition require- ments with respect to trace elements is ...
Page 13
... alloy steel spectrochemical standards [ 3 ] . Careful control was maintained over the melting proce- dures to include time , temperature , and amount and order of additions to the furnace . Table 3 shows as an example the melt log for ...
... alloy steel spectrochemical standards [ 3 ] . Careful control was maintained over the melting proce- dures to include time , temperature , and amount and order of additions to the furnace . Table 3 shows as an example the melt log for ...
Page 14
... alloy of carbon , silicon and iron was prepared and used for the main additions of carbon and silicon . Chemical determinations showed 2.56 % C and 2.72 % Si . C Quantitative chemical and spectrochemical determinations were made for 20 ...
... alloy of carbon , silicon and iron was prepared and used for the main additions of carbon and silicon . Chemical determinations showed 2.56 % C and 2.72 % Si . C Quantitative chemical and spectrochemical determinations were made for 20 ...
Page 15
... Alloy melting stock ( 305.23 lb ) , Ni ( 4.50 lb ) , Cu ( 1.00 lb ) . Furnace On : 9:30 AM . Half Melt Down : Time 10:15 AM ; added C ( 1.88 lb ) , Si ( none ) , Mn ( 2.68 1b ) . Melt Down : Time 10:43 AM , Temp . 2500 ° F . Skim : Time ...
... Alloy melting stock ( 305.23 lb ) , Ni ( 4.50 lb ) , Cu ( 1.00 lb ) . Furnace On : 9:30 AM . Half Melt Down : Time 10:15 AM ; added C ( 1.88 lb ) , Si ( none ) , Mn ( 2.68 1b ) . Melt Down : Time 10:43 AM , Temp . 2500 ° F . Skim : Time ...
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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