ISSN 2594-5297
54º Seminário de Laminação e Conformação — vol. 54, num.54 (2017)
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Resumo
While the hot cracking of Cu-containing steels is a serious and widely known problem for the industry, the literature reports that copper only slightly impairs the hot-ductility measured in laboratory. A distinction is drawn between hot ductility and hot shortness and the respective cracking operating mechanism involved at the respective range of temperature. The representability of the laboratory assessment of hot cracking of Cu-containing steels by hot tensile tests compared with actual results in industrial practice is discussed. The effectiveness of the variable affecting in each cracking mechanism and respective temperature range, focused in improving the hot cracking assessment of Cu-steels and the relative importance of oxidation will also be discussed. It is concluded that the hot tensile test in argon might be a good simulation if properly interpreted and that the role of oxidation is secondary in causing hot shortness. A schematic diagram for the hot tensile test is proposed.
Palavras-chave
hot cracking, weathering steels, Cu steels
hot cracking, weathering steels, Cu steels
Como citar
Comineli, Osvaldo Guilherme;
Aranas Jr, Clodualdo;
Dippenaar, Rian.
ADVANCES IN THE ASSESSMENT OF HOT CRACKING OF Cu-CONTAINING STEELS
,
p. 267-280.
In: 54º Seminário de Laminação e Conformação,
São Paulo,
2017.
ISSN: 2594-5297
, DOI 10.5151/1983-4764-30399
