Influence of cooling rate on microstructure and mechanical properties of 42SiCr steel after Q&P process

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F19%3A43954372" target="_blank" >RIV/49777513:23210/19:43954372 - isvavai.cz</a>

Result on the web

<a href="https://arl.ujep.cz/arl-ujep/cs/csg/?repo=ujeprepo&key=10891375041" target="_blank" >https://arl.ujep.cz/arl-ujep/cs/csg/?repo=ujeprepo&key=10891375041</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21062/ujep/338.2019/a/1213-2489/MT/19/4/583" target="_blank" >10.21062/ujep/338.2019/a/1213-2489/MT/19/4/583</a>

Result language

angličtina

Original language name

Influence of cooling rate on microstructure and mechanical properties of 42SiCr steel after Q&P process

Original language description

Using innovative methods of heat treatment (HT) for high-strength steels, such as the Q&amp;P process, very favoura-ble ratios of ductility and strength can be achieved. Materials processed by this technology have higher content of retained austenite, and therefore better ductility. This experiment deals with HT of 42SiCr steel. The conventional HT and the Q&amp;P processing are compared with respect to material properties. Metallographic analysis, hardness measurement, X-ray diffraction phase analysis (of retained austenite content) and tensile testing were performed. For the hardened samples, the effects of the cooling rate on their microstructure were assessed and the measured real-world data were compared with the simulations performed in the FEA simulation software DEFORMTM based on the thermocouple records. After a conventional HT, the material showed little sensitivity to the cooling rate. In contrast, the Q&amp;P process with higher quenching temperatures resulted in a higher austenite content and elonga-tion of up to 15 % at a strength of 1800 MPa.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

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

Name of the periodical

Manufacturing Technology

ISSN

1213-2489

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

583-588

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85077152486