Promising Bimetallic Construction Material with Increased Strength and Corrosion Resistance


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Technology is provided for preparing by surfacing followed by hot rolling of bimetallic structural materials (BSM) with a main layer of low-carbon manganese low-alloy steel of the bainitic class and a corrosionresistant cladding layer of two-phase austenitic-ferritic steel (TAF steel) alloyed with nitrogen. Results are provided for microhardness measurement of different layers and corrosion tests for BSM heat treated by different regimes. It is shown that due to a concluding heat treatment, including high-temperature austenitizing followed by accelerated cooling and high-temperature tempering in chloride-containing media the cladding layer acquires pitting resistance exceeding that of steels 08Kh17N13M2T and 08Kh22N6T, and also a favorable combination of increased hardness and uniform strength for layers of different chemical composition and structural state.

作者简介

V. Molyarov

All-Russia Research and Design Institute for Petroleum Machine Building (VNIINEFTEMASh)

编辑信件的主要联系方式.
Email: molyaron@mail.ru
俄罗斯联邦, Moscow

A. Kalashnikova

All-Russia Research and Design Institute for Petroleum Machine Building (VNIINEFTEMASh)

Email: molyaron@mail.ru
俄罗斯联邦, Moscow

A. Molyarov

National University of Science and Technology MISiS

Email: molyaron@mail.ru
俄罗斯联邦, Moscow

M. Belomytsev

National University of Science and Technology MISiS

Email: molyaron@mail.ru
俄罗斯联邦, Moscow

N. Endel’

Bardin Central Research Institute of Ferrous Metallurgy (TsNIIchermet)

Email: molyaron@mail.ru
俄罗斯联邦, Moscow

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