Verification of Strength of the Welded Joints by using of the Aramis Video System

Open access


In the paper are presented the results of strength analysis for the two types of the welded joints made according to conventional and laser technologies of high-strength steel S960QC. The hardness distributions, tensile properties and fracture toughness were determined for the weld material and heat affect zone material for both types of the welded joints. Tests results shown on advantage the laser welded joints in comparison to the convention ones. Tensile properties and fracture toughness in all areas of the laser joints have a higher level than in the conventional one. The heat affect zone of the conventional welded joints is a weakness area, where the tensile properties are lower in comparison to the base material. Verification of the tensile tests, which carried out by using the Aramis video system, confirmed this assumption. The highest level of strains was observed in HAZ material and the destruction process occurred also in HAZ of the conventional welded joint.

1. Aramis v6.1 User Manual, GOM Gmbh, 2009.

2. ASTM E 1820-05, Standard Test Method for Measurement of Fracture Toughnes,. ASTM, Philadelphia; 2000.

3. Bhadeshia H.K.D.H. (2001), Bainite in Steels, Institute of Materials, London.

4. Dzioba I. (2011), The influence of the microstructural components on fracture toughness of 13HMF steel, Materials Science, 47(5), 357-364.

5. Dzioba I., Pała T. (2014), Mechanical properties of welded joints made of high-strength steel S960-QC by laser method, Logistyka, 6, 3458-3464 (in Polish).

6. Dzioba I., Pała T., Valkonen I. (2013), Strength and fracture toughness of the welded joints made of high-strength ferritic steel, Acta Mechanica et Automatica, 7(4), 226-229.

7. Gałkiewicz J., Pała T., Dzioba I. (2012), Mechanical properties of the welded joints of ultra-strength ferritic steels, XXIII Symposium on Fatigue and Fracture Mechanics Bydgoszcz–Pieczyska, 63-72 (in Polish).

8. Górka J. (2015), Weldability of Thermomechanically Treated Steels Having a High Yield Point, Archives of Metallurgy and Materials, 60(1), 469-475.

9. Hakansson K., Weld Metal Properties for Extra High Strength Steels, Report 2002 – August, Division of Welding, Department of Production Engineering, The Royal Institute of Technology, 1-36.

10. Keehan E., Zachrisson J., Karlsson L. (2010), Influence of cooling rate on microstructure and properties of high strength steel weld metal, Science and Technology of Welding and Joining, 15, 233-238.

11. Lambert-Perlade A., Gourgues A.F., Besson J., Sturel T., Pineau A. (2004), Mechanisms and modeling of cleavage fracture in simulated heat-affected zone microstructures of a high-strength low alloy steel, Metall Mater Trans A; 35(13):1039-53.

12. Lillemäe I., Remes H., Liinalampi S., Itävuo A. (2016), Influence of weld quality on the fatigue strength of thin normal and high strength steel butt joints, Welding in the World, 4, 1-10.

13. Lisiecki A. (2014), Weldability of Thermomechanically Treated Steels Having a High Yield Point, Archives of Metallurgy and Materials, 59(4), 1625-1631.

14. Liu F., Yu X., Huang C., He L., Chen Y., Bu W. (2015), Microstructure and mechanical properties of AerMet 100 ultra-high strength steel joints by laser welding, Journal of Wuhan University of Technology-Mater. Sci. Ed., 8/2015, 30, 827-830.

15. Mazanek K., Sniezek l., Slezak T. (2013), Fatigue research of welded joints of high strength S960QL steel, Bulletin of the Military University of Technology, 42(1), 253-269 (in Polish).

16. Pała T., Gałkiewicz J., Dzioba I. (2016), Determination of Strain and Stress Fields in Laser Welded Joints by Means of the Aramis Video System, Solid State Phenomena, 250, 151-156.

17. PN-EN ISO 6507-1:2006. Metals, toughness measurement by the Vicker's method, part 1, testing method (in Polish).

18. PN-EN ISO 6892-1:2010. Metals, tensile test, part 1: Testing method at room temperature (in Polish).

19. Tweed J.R., Knott J.F. (1987), Micromechanisms of failure in C-Mn weld metal, Acta Metallurgica, 35(7), 1401-1414.

20. Yang Y., Shi L., Xu Z., Lu H., Chen X., Wang X. (2015), Fracture toughness of the materials in welded joints of X80 pipeline steel, Engineering Fracture Mechanics, 148, 337-349.

Acta Mechanica et Automatica

The Journal of Bialystok Technical University

Journal Information

CiteScore 2017: 1.07

SCImago Journal Rank (SJR) 2017: 0.361
Source Normalized Impact per Paper (SNIP) 2017: 0.917


All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 89 89 14
PDF Downloads 36 36 6