Research Article
Effect of Alloying Composition on Microstructure and Mechanical Properties of Ultranarrow Gap Welded Joints of U71Mn Rail Steel
Table 3
Effect of flux formulation on the ultimate tensile strength of the weld joints.
| | Flux formulation | | Specimen 1 | Specimen 2 | Specimen 3 | Specimen 4 | Average |
| | Formulation 2 | Ultimate tensile strength (MPa) | 826 | 797 | 831 | 787 | 810 | | Percentage elongation after fracture | 7.9 | 10.1 | 13.9 | 6.6 | 9.6 |
| | Formulation 3 | Ultimate tensile strength (MPa) | 889 | 930 | 853 | 833 | 876 | | Percentage elongation after fracture | 6.9 | 6.1 | 6.6 | 6.3 | 6.5 |
|
|
