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Evaluation of Selected Austenitic Stainless Steels Hot Crack Susceptibility

Lechosław Tuz, Krzysztof Pańcikiewicz, Edmund Tasak, Janusz Adamiec, Tomasz Góral

The article presents the results concerning hot crack susceptibility of selected steels having an austenitic structure. The tests were based on the analysis of the chemical composition of these steels and utilising special stations for the Transvarestraint tests and the Blanchet method. During the tests it was possible to observe cracks in the liquid-solid area. The results obtained indicate the existence of an area free from solidification cracks for a certain strain value at a pre-set welding rate. It was also possible to observe the absence of a distinct boundary between such areas, which was reflected in the crack length.

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