Publication: Mechanical Properties of VNS9-Sh TRIP Steel at Various Test Temperatures
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2020
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© 2020, Pleiades Publishing, Ltd.Abstract: The influence of the test temperature from the range from +400 to –120°C on the mechanical properties and the phase composition of austenitic–martensitic VNS9-Sh TRIP sheet steel is studied. As the deformation temperature increases, the ultimate tensile strength is shown to decrease sharply from 1600 MPa at +20°C to 700 MPa at 400°C. A yield plateau disappears from static stress–strain curves beginning from a deformation temperature of 100°C. The strain-induced martensite content decreases from 84% at a deformation temperature of 20°C to 42% at 400°C. The strain-induced martensite content increases significantly during deformation in the temperature range from 0 to –120°C. The plasticity is maximal at –100°C: it decreases when the temperature decreases or increases.
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Mechanical Properties of VNS9-Sh TRIP Steel at Various Test Temperatures / Terent'ev, V.F. [et al.] // Russian Metallurgy (Metally). - 2020. - 2020. - № 4. - P. 416-421. - 10.1134/S0036029520040321
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https://www.doi.org/10.1134/S0036029520040321
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https://openrepository.mephi.ru/handle/123456789/21646
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https://openrepository.mephi.ru/handle/123456789/21646