前言 随着美国宇航事业的发展以及钢铁工业技术水平的提高,各种类型壳体用钢的研制、试验和应用不断扩大,钢材的成分、冶金质量、加工工艺和基本性能不断改进,积累的使用经验也日趋丰富。 本文仅就各主要钢材在美国固休发动机壳休上的应用历史、现状和特点进行简要评述, Preface With the development of the U.S. aerospace industry and the improvement of the technical level of the steel industry, the development, testing and application of various types of shell-based steels have been continuously expanded. The composition, metallurgical quality, processing technology and basic properties of steels have been continuously improved. Experience is also increasingly rich. In this paper, only the main steel in the United States solid hull off the application history, status and characteristics of a brief review,