Thermomechanical Strengthening of Powder Stainless Steel of the Austenitic Class and Wear-Resistant Composites Based upon It

The effect of thermomechanical strengthening of powder materials of several compositions (steel Kh18N15 without additives, with added carbon, and also with additions of Cr^sub 2^C^sub 3^, MoS^sub 2^ and carbon) during hot forming is established by experiment. This effect is detected by comparing the...

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Bibliographic Details
Published in:Powder metallurgy and metal ceramics 2005-09, Vol.44 (9-10), p.435-440
Main Authors: Napara-Volgina, S. G., Maslyuk, V. A.
Format: Article
Language:English
Subjects:
Carbon
Forming
Metallurgy
Molybdenum disulfide
Shear strain
Stainless steels
Strength
Strengthening
Structural steels
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Summary:The effect of thermomechanical strengthening of powder materials of several compositions (steel Kh18N15 without additives, with added carbon, and also with additions of Cr^sub 2^C^sub 3^, MoS^sub 2^ and carbon) during hot forming is established by experiment. This effect is detected by comparing the physicomechanical properties of specimens, prepared by high-temperature thermomechanical treatment, with specimens of a similar composition subjected to complete annealing and hardening after separate heating. The different nature in the dependence of strength properties for steel Kh18N15 without additions and a composite based upon it on shear strain intensity during forming is established. Thermomechanical strengthening of hot-formed single-phase stainless steel is traditional in nature: with an increase in the intensity of shear strain steel strength properties increase, but conversely for a composite they decrease and this is explained by the specific nature of its structure formation during forming.[PUBLICATION ABSTRACT]
ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-006-0005-1