TY - RPRT TI - Metallurgical evaluation of 17-4 PH stainless steel castings AU - Hicho, George E AU - Smith, John H PY - 1989 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 89-4075 DO - 10.6028/NIST.IR.89-4075 ER -