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2025 №07 (06) DOI of Article
10.37434/tpwj2025.07.07
2025 №07 (01)

The Paton Welding Journal 2025 #07
The Paton Welding Journal, 2025, #7, 42-46 pages

Small-sized process test for the evaluation of cold cracking susceptibility of weld metal

L.S. Zakharov, A.R. Havryk

E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: leza45@gmail.com

Abstract
A new weldability test has been developed that allows experimental determination of the critical preheating temperature necessary to prevent the formation of cold cracks in welded joints. The new geometry of the welding unit allows combining the bending stresses with normal transverse and longitudinal ones, increasing the test stiffness. The proposed test sample design has lower metal content and allows its repeated use. The weldability of hardening steels with different degrees of alloying was tested with application of the new test. The obtained test results are comparable to the results obtained in other studies of steel weldability and they have been recommended for use under production conditions.
Keywords: welded joints, cold cracks, welding tests

Received: 04.12.2024
Received in revised form: 13.01.2024
Accepted: 04.07.2025

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Suggested Citation

L.S. Zakharov, A.R. Havryk (2025) Small-sized process test for the evaluation of cold cracking susceptibility of weld metal. The Paton Welding J., 07, 42-46. https://doi.org/10.37434/tpwj2025.07.07