Abstract
This chapter demonstrates the objectives of adding alloying elements to steel through their effects on microstructure and consequent improvements in mechanical properties. Classifications and designations followed by different international standards are briefly outlined. The development of medium carbon low alloy steels used for aerospace applications is described, including their compositions and mechanical properties. Salient aspects of the physical metallurgy including heat treatment and surface hardening methods are brought out. The engineering properties of ultra high strength steels are briefly mentioned. The efforts towards indigenous development and manufacture of some aero steels are also presented.
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Acknowledgments
The authors would like to thank Dr. R.J.H. Wanhill for his excellent review of this book chapter and also for his numerous inputs which have become integral parts of the text of this chapter. They are thankful to Dr. Amol Anant Gokhale, Distinguished Scientist and Director, Defence Metallurgical Research Laboratory Hyderabad, India, for his support and encouragement.
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Balan, K.P., Reddy, A.V. (2017). Aero Steels: Part 1—Low Alloy Steels. In: Prasad, N., Wanhill, R. (eds) Aerospace Materials and Material Technologies . Indian Institute of Metals Series. Springer, Singapore. https://doi.org/10.1007/978-981-10-2134-3_7
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DOI: https://doi.org/10.1007/978-981-10-2134-3_7
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