| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [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
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION; v. 33, n. 2, p. 115-120, APR 2012. |
| Web of Science Citations: | 1 |
| Abstract | |
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) | |
| FAPESP's process: | 06/02470-0 - Monte Carlo modeling of the interaction between configurational order and point defects in iron aluminides |
| Grantee: | Claudio Geraldo Schon |
| Support Opportunities: | Regular Research Grants |