Issue 68

C. Bleicher et alii, Frattura ed Integrità Strutturale, 68 (2024) 371-389; DOI: 10.3221/IGF-ESIS.68.25

EN-GJS-400-18LT

Cast block

Component

Etched section of the complete cross section of a bending specimen from the hub with small pores and a fatigue crack in the welding filler

Macroscopic picture of the etched welding with local pores and a fatigue crack

Hardness map at the edge of the fusion zone

Etched section of the complete cross section of an axial specimen from the hub

Crack through welding filler and the base material

Solidification structure inside the fusion zone

Etched section of the fusion line and the heat affected zone with hard martensitic and ledeburitic microstructures

Fracture surface of an axial specimen with failure in the welding filler Table 6: Examples of micrographs, hardness maps and etched sections for EN-GJS-400-18LT with welds

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