METASTABLE AUSTENITIC FORMING OF HIGH STRENGTH PRESSURE VESSELS
Abstract
Three selected alloys; Type H-11 tool steel, AM 355 semiaustenitic stainless steel, and 18NiCoMo (300) maraging steel, were fabricated into biaxial pressure vessel test specimens. For the fabrication of the biaxial pressure vessel test specimens, designed experiments were utilized to evaluate a variety of processing and heat treat variables. The fabricated pressure vessels (i.e. tubes) were tested to failure in a hydrostatic test facility and evaluated for selection of an optimum material and associated fabrication process for a high performance, integral rocket motor case. Based on these studies the 18NiCoMo (300) maraging steel and a specific processing schedule were selected for Phase II and III evaluation. An intermediate size cylindrical test specimen and an integral subscale rocket motor case were designed for Phase II investigation of optimized fabrication techniques for the manufacture of an integral motor case from 18NiCoMo (300) material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1963
- Accession Number
- AD0402636
Entities
People
- J. M. Raymer