TY - RPRT TI - An X-ray diffraction method for determining the amount of Austenite in an Austenite-Ferrite mixture AU - Bechtoldt, C J PY - 1972 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS TN 709 DO - 10.6028/NBS.TN.709 ER -