Heat treatment of nitrided layer formed on X37CrMoV5-1 hot working tool steel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F17%3AN0000044" target="_blank" >RIV/26316919:_____/17:N0000044 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/1757-899X/179/1/012013" target="_blank" >http://iopscience.iop.org/1757-899X/179/1/012013</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/179/1/012013" target="_blank" >10.1088/1757-899X/179/1/012013</a>

Result language

angličtina

Original language name

Heat treatment of nitrided layer formed on X37CrMoV5-1 hot working tool steel

Original language description

The paper presents the technology consisting of combination of the nitriding process with subsequent austenitizing at temperature above eutectoid temperature of the Fe-C system and further rapid cooling. Such treatment will cause formation of the martensite in the area of the primarily nitrided layer and the additional precipitation hardening by tempering of heat treated steel. The article shows that the heat treatment process of nitrided layer formed on X37CrMoVS-1 steel leads to strengthening of surface layer, the substrate and the core of nitrided part. Heat treatment of nitrided steel with the tempering in inert (nitrogen) or active (ammonia) atmosphere can increase the thickness of the layer formed by short-term nitriding process. After the nitriding process of X37CrMoVS-1 steel the nitrided layer had a thickness of about 160 mu m, while a subsurface layer of iron nitrides had a thickness of 7 mu m. After subsequent quenching and tempering processes, the nitrided layer undergoes additional diffusion and its thickness is increased to about 220 mu m (inert atmosphere) or 280 mu m (active atmosphere). If the tempering process is carried out in an inert atmosphere, the primarily formed layer of iron nitrides disappears. Tempering in an active atmosphere leads to forming of white layer with a thickness of 7 mu m. Basic properties of nitrided layers formed in such way, like the hardness and the wear resistance, are presented.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/LTE117006" target="_blank" >LTE117006: Innovative thermo-chemical treatment of forming, forging and cutting tools</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

4th International Conference Recent Trends in Structural Materials (COMAT 2016)

ISBN

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ISSN

1757-8981

e-ISSN

—

Number of pages

8

Pages from-to

nestránkováno

Publisher name

IOP Publishing

Place of publication

Bristol

Event location

Plzeň

Event date

Nov 9, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000403407100013