| Texto completo | |
| Autor(es): |
Número total de Autores: 2
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| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Computat Mat Sci Lab, Dept Met & Mat Engn, Escola Politecn, BR-05508900 Sao Paulo - Brazil
[2] ThyssenKrupp Bilstein Brasil, BR-04186902 Sao Paulo - Brazil
Número total de Afiliações: 2
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| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION; v. 33, n. 2, p. 115-120, APR 2012. |
| Citações Web of Science: | 1 |
| Resumo | |
The influence of different Cr and C contents upon the solidification interval of ASTM A352M-06 Grade CA6NM cast martensitic stainless steel has been investigated using computational thermodynamics, and checked against DTA measurements in samples taken from 13 large cast parts, in order to identify potential sources for improvement on the part castability. Calculation results suggest, indeed, that this would be the case for C: when its content increases from 0.018 to 0.044 wt.% C (within the allowed range in the alloy specification), the solidification intervals increases from 25 to 43 K, which suggests improved castability with decreasing C contents. DTA results, however, do not support this prediction, showing a fairly constant solidification interval around 23 K for all investigated samples. The results are discussed both regarding the impact in alloy processing and the fitness of the existing databases to reproduce experimental results in these limiting cases. (AU) | |
| Processo FAPESP: | 06/02470-0 - Modelamento por Monte Carlo da interação entre ordem configuracional e defeitos puntiformes em aluminetos de ferro |
| Beneficiário: | Claudio Geraldo Schon |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |