Accession Number : AD0438009


Title :   METASTABLE AUSTENITIC FORMING OF HIGH STRENGTH PRESSURE VESSELS.


Descriptive Note : Semiannual rept. no. 3, 1 Apr-Sep 63,


Corporate Author : AVCO LYCOMING DIV STRATFORD CONN


Personal Author(s) : Raymer,J M


Report Date : 15 Oct 1963


Pagination or Media Count : 54


Abstract : Detailed analysis of the effects of the various processing parameters employed during Phase I effort was completed. Most information was obtained from the full factorial experiment of the 18NiCoMo (300) maraging steel, where parametric and non-parametric analyses were carried out. From these analyses, an optimum combination of processing parameters was derived, and incorporated in the processing schedule of the intermediate size cylindrical test specimen. All necessary forgings in 18 NiCoMo (300) maraging steel and tooling for fabrication were obtained and two 14.5 in. diameter cylindrical test bottles were spun to verify the results obtained during Phase I. Effort was made in evaluating the backup approach to effect closure of the aft end by a shrinking operation. (Author)


Descriptors :   *PRESSURE VESSELS , MATERIAL FORMING , METAL SPINNING , MARAGING STEELS , STAINLESS STEEL , TOOL STEEL , PROCESSING , HEAT TREATMENT , DEFORMATION , HYDROSTATIC PRESSURE , STATISTICAL ANALYSIS , MECHANICAL PROPERTIES , ROCKET ENGINE CASES , AUSTENITE , MARTENSITE , MICROSTRUCTURE , TEMPERATURE , TIME


Distribution Statement : APPROVED FOR PUBLIC RELEASE