Bibliographic Details
| Title: |
Multimodal discontinuous reaction in Ni-Fe-Cr-Al alloy. |
| Authors: |
Lech, Sebastian1 (AUTHOR) slech@agh.edu.pl, Polkowski, Wojciech2 (AUTHOR), Polkowska, Adelajda2 (AUTHOR), Cempura, Grzegorz1 (AUTHOR), Kruk, Adam1 (AUTHOR) |
| Source: |
Scripta Materialia. Mar2021, Vol. 194, pN.PAG-N.PAG. 1p. |
| Subjects: |
Discontinuous precipitation, Crystal grain boundaries, Alloys, Nickel alloys, Deterioration of materials |
| Abstract: |
Ni-Fe-Cr-Al alloy has been subjected to 2 hours aging treatment between 600-900°C, which influenced the mechanical properties and resulted in discontinuous precipitation at the grain boundaries. In this study, SEM, TEM and STEM-EDXS were applied to explore the relationship between the occurring grain boundary precipitation phenomena and mechanical behavior. Within the discontinuous precipitation zone, three different phases were recognized, namely γ solid solution with lamellar M 23 C 6 carbides and elongated γ' precipitates at the reaction front. Coherency of the discontinuous precipitates was identified as they have shown a cube-on-cube orientation relationship. Furthermore, the development of multiple discontinuous reactions was discussed. Image, graphical abstract [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
