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2.4879 | G-NiCr28W Fracture of a Furnace Roll - 02
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 01
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 02
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 03
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 04
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 05
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 06
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 07
2.4879 | G-NiCr28W Fracture of a Furnace Roll - 08

2.4879 | G-NiCr28W Fracture of a Furnace Roll

Numeric designation2.4879
Chemical designationG-NiCr28W
StateFracture of a Furnace Roll
EtchingKalling 2

The furnace roll broke after a short time, caused by large radial shrinkage cavities which reduce the cross-section by up to 2/3. After fracture, the fragment was overheated which caused the isolation material inside to locally react with the roll surface and to form a low-melting (eutectic) Ca-Fe silicate phase that ran into a few cracks and shrinkage cavities.

Sample provided by Wuxi Cast GmbH (WCF)

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