Scientific and Technological Bases for Developing Cold-Resistant Steel with a Guaranteed Yield Strength of 315–750 MPa for Arctic Conditions. Part 1: Alloying Principles and Requirements for Sheet Product Structure
- Авторлар: Sych O.1
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Мекемелер:
- National Research Center Kurchatov Institute—Central Research Institute of Structural Materials Prometey
- Шығарылым: Том 10, № 6 (2019)
- Беттер: 1265-1281
- Бөлім: Metal Sciences. Metallurgy
- URL: https://journals.rcsi.science/2075-1133/article/view/208115
- DOI: https://doi.org/10.1134/S207511331906025X
- ID: 208115
Дәйексөз келтіру
Аннотация
Abstract—The results obtained upon choosing rational alloying and microalloying for cold-resistant steels with a guaranteed yield strength of 315–750 MPa on the basis of established interrelations between phase transformations, structure, mechanical properties, serviceability parameters, and the content of main alloying elements are presented. Quantitative requirements for various structural parameters and their maximum permissible difference throughout sheet product thickness up to 100 mm have been developed, depending on the strength category and manufacturing technology (thermomechanical treatment with accelerated cooling, quenching from separate furnace heating or rolling heating with high temperature tempering) to provide guaranteed characteristics of strength, cold resistance (impact energy KV at a testing temperature from –60 to –80°С, critical ductile-to-brittle transition temperature Тkb, and nil ductility temperature NDT), and crack resistance according to the criterion of critical crack tip opening displacement (CTOD).
Авторлар туралы
O. Sych
National Research Center Kurchatov Institute—Central Research Institute of Structural Materials Prometey
Хат алмасуға жауапты Автор.
Email: mail@crism.ru
Ресей, St. Petersburg, 191015