Open AccessSTUDY ON MECHANICAL PROPERTIES AND MICROSTRUCTURE OF 42CrMo4/NANOS-BA® HIGH-STRENGTH CLAD PLATES AFTER THE PROCESS OF HOT ROLLING AND TWO-STAGE HEAT TREATMENT WITH ISOTHERMAL TRANSFORMATION
Author(s) -
Bartłomiej Walnik,
Dariusz Woźniak,
Aleksandra Nieszporek,
M. Adamczyk
Publication year - 2021
Publication title -
journal of metallic materials
Language(s) - English
Resource type - Journals
ISSN - 2657-747X
DOI - 10.32730/imz.2657-747.21.1.4
Subject(s) - microstructure , materials science , isothermal process , ultimate tensile strength , welding , bending , shear (geology) , composite material , classification of discontinuities , metallurgy , mathematics , mathematical analysis , physics , thermodynamics
The aim of the study was to develop a technology for welding non-weldable 42CrMo4 and NANOS-BA® steel grades in the process of hot rolling and two-stage heat treatment. As a result of physical experiments carried out in a line for semi-industrial simulation of the production of metals and their alloys (LPS) and additional heat treatment, a durable combination of 42CrMo4 and NANOS-BA® steels with high mechanical properties was obtained, including: Rp0.2 = 1036 MPa, Rm = 1504 MPa and A = 10.9%, without microscopically visible cracks and other discontinuities in the joined surface. The quality of the 42CrMo4/NANOS-BA® clad plates produced in this way was assessed on the basis of microstructure examination as well as bending, shear and tensile strength tests.