On Phase Transformation and Precipitations in Welded 17-4 PH Steel (Report 1)
析出硬化型17-4PH鋼の溶接部における変態と析出について(第1報)

Hiroshi Ikawa, Shigeo Shin, Mitsuaki Yoshikawa, Toru Miyoshi, Hiroshi Fukada
1970 JOURNAL OF THE JAPAN WELDING SOCIETY  
17-4 PH stainless steel transforms to martensite during cooling from the solution-treatment temperature and is strengthened by precipitation in the low carbon martensite matrix. But there has been very little information given to date on the nature of the precipitates in this steel. We made a study on the precipitates by transmission electron microscopy and electron diffraction technique. The results obtained are summarized as follows: (1) The precipitate is fcc copper rich phase with a lattice parameter of 3.595•'3.600 A.
doi:10.2207/qjjws1943.39.7_660 fatcat:a6nrbijr5baybc5aqkryylikpu