Stacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction
A critical assessment has been performed to determine the stacking fault energy (SFE) of the austenite phase in high manganese steels using X-ray diffraction (XRD). It was found that the SFE varies substantially with the chosen elastic constants. This strong dependence induces substantial errors in...
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2021
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oai:doaj.org-article:9f9251df19344a34a498a66ef1788fdb2021-11-25T18:21:19ZStacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction10.3390/met111117012075-4701https://doaj.org/article/9f9251df19344a34a498a66ef1788fdb2021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1701https://doaj.org/toc/2075-4701A critical assessment has been performed to determine the stacking fault energy (SFE) of the austenite phase in high manganese steels using X-ray diffraction (XRD). It was found that the SFE varies substantially with the chosen elastic constants. This strong dependence induces substantial errors in the estimated values of the SFE of the austenite and, thus, the mechanical behavior of Fe-Mn-Al-C steels. The SFE of three different Fe-Mn-Al-C alloys with varying aluminum (Al) content was determined in order to establish the main plastic deformation mechanism. The aim of this work is to establish a more straightforward and reliable methodology to calculate the SFE by XRD. In this effort, it was determined that uncertainty in the elastic constants can generate errors in up to 37% of the SFE. Moreover, in the studied case, for average of elastic constant values, the predominant deformation mechanism is defined, but when considering one set of constants, these can present uncertainty of 2.7 mJ/m<sup>2</sup> and 4.4 mJ/m<sup>2</sup> for alloys of 0% Al and 3% Al, respectively. This would lead them to be within the following plastic deformation mechanism, while for 8% Al the uncertainty is negligible.Jaime A. CastañedaOscar A. ZambranoGermán A. AlcázarSara A. RodríguezJohn J. CoronadoMDPI AGarticleaustenitic steelX-ray diffractionstacking fault energyelastic constantsMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1701, p 1701 (2021) |
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austenitic steel X-ray diffraction stacking fault energy elastic constants Mining engineering. Metallurgy TN1-997 |
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austenitic steel X-ray diffraction stacking fault energy elastic constants Mining engineering. Metallurgy TN1-997 Jaime A. Castañeda Oscar A. Zambrano Germán A. Alcázar Sara A. Rodríguez John J. Coronado Stacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction |
| description |
A critical assessment has been performed to determine the stacking fault energy (SFE) of the austenite phase in high manganese steels using X-ray diffraction (XRD). It was found that the SFE varies substantially with the chosen elastic constants. This strong dependence induces substantial errors in the estimated values of the SFE of the austenite and, thus, the mechanical behavior of Fe-Mn-Al-C steels. The SFE of three different Fe-Mn-Al-C alloys with varying aluminum (Al) content was determined in order to establish the main plastic deformation mechanism. The aim of this work is to establish a more straightforward and reliable methodology to calculate the SFE by XRD. In this effort, it was determined that uncertainty in the elastic constants can generate errors in up to 37% of the SFE. Moreover, in the studied case, for average of elastic constant values, the predominant deformation mechanism is defined, but when considering one set of constants, these can present uncertainty of 2.7 mJ/m<sup>2</sup> and 4.4 mJ/m<sup>2</sup> for alloys of 0% Al and 3% Al, respectively. This would lead them to be within the following plastic deformation mechanism, while for 8% Al the uncertainty is negligible. |
| format |
article |
| author |
Jaime A. Castañeda Oscar A. Zambrano Germán A. Alcázar Sara A. Rodríguez John J. Coronado |
| author_facet |
Jaime A. Castañeda Oscar A. Zambrano Germán A. Alcázar Sara A. Rodríguez John J. Coronado |
| author_sort |
Jaime A. Castañeda |
| title |
Stacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction |
| title_short |
Stacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction |
| title_full |
Stacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction |
| title_fullStr |
Stacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction |
| title_full_unstemmed |
Stacking Fault Energy Determination in Fe-Mn-Al-C Austenitic Steels by X-ray Diffraction |
| title_sort |
stacking fault energy determination in fe-mn-al-c austenitic steels by x-ray diffraction |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/9f9251df19344a34a498a66ef1788fdb |
| work_keys_str_mv |
AT jaimeacastaneda stackingfaultenergydeterminationinfemnalcausteniticsteelsbyxraydiffraction AT oscarazambrano stackingfaultenergydeterminationinfemnalcausteniticsteelsbyxraydiffraction AT germanaalcazar stackingfaultenergydeterminationinfemnalcausteniticsteelsbyxraydiffraction AT saraarodriguez stackingfaultenergydeterminationinfemnalcausteniticsteelsbyxraydiffraction AT johnjcoronado stackingfaultenergydeterminationinfemnalcausteniticsteelsbyxraydiffraction |
| _version_ |
1718411276344885248 |