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Application of GTAW method for surface remelting of cooper ductile cast iron

Ciechacki K., Szykowny T.

Journal of Polish CIMAC

2011

Vol. 6, no 3

15-22

The GTAW method was employed for surface remelting of copper ductile cast iron of 0.48 or 0.95 % copper content by mass and pearlitic/ferritic or pearlitic structure. The cold remelting or multiple remelting technique was adopted to harden the cast iron. The remelted layers underwent tests of hardness, tests of micro-hardness of individual structural components and microscopic tests (LEM). The tests focused on the presence of macro- and micro-cracks within the hardened layer.