Open AccessPhase structure control in austenite steels during surface strengthening by high-temperature nitride hardenin
Author(s) -
Л. Г. Петрова,
А. С. Сергеева
Publication year - 2020
Publication title -
naukoëmkie tehnologii v mašinostroenii
Language(s) - English
Resource type - Journals
ISSN - 2223-4608
DOI - 10.30987/2223-4608-2020-6-3-11
Subject(s) - austenite , materials science , nitride , metallurgy , hardening (computing) , case hardening , chromium , chromium nitride , hardness , composite material , microstructure , layer (electronics)
A problem of austenitic steel surface strengthening is considered. There are shown advantages and disadvantages of common low-temperature and high-temperature gas nitride hardening connected with the prevention of chromium nitride formation on the surface of products. The estimate of nitride steel phase structures on the basis of thermo-dynamic models and an experimental definition of parameters for obtaining an austenite surface alloyed with nitrogen are carried out.