Active learning of eutectic phase diagram in engineering courses
The present article shows a new strategy used to cover phase diagrams for undergraduate mechanical engineering students. It is based on active learning in which students are required to investigate experimentally three different eutectic alloys by using X-ray diffraction and metallography. The firs...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Viçosa (UFV)
2021-06-01
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| Series: | The Journal of Engineering and Exact Sciences |
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| Online Access: | https://periodicos.ufv.br/jcec/article/view/12606 |
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| _version_ | 1832569651227262976 |
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| author | Erika Figueiredo Hehnes Paula Carolina de Souza Júlio César Dutra |
| author_facet | Erika Figueiredo Hehnes Paula Carolina de Souza Júlio César Dutra |
| author_sort | Erika Figueiredo Hehnes |
| collection | DOAJ |
| description |
The present article shows a new strategy used to cover phase diagrams for undergraduate mechanical engineering students. It is based on active learning in which students are required to investigate experimentally three different eutectic alloys by using X-ray diffraction and metallography. The first technique allows students to use Rietveld analysis to obtain the mass fraction of the present phases and they must compare their results with those obtained theoretically whilst the second one is used to characterize those phases and measured their area fractions. From these results, they can also compare them with those obtained theoretically, but considering the density of different phases. The results have shown that students understood more clearly concepts such as the lever rule, and the very interpretation of phase diagram: the liquidus and solidus curve and finally the eutectic point.
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| format | Article |
| id | doaj-art-412584fe44894782994e6ef7e2f4fc31 |
| institution | Kabale University |
| issn | 2527-1075 |
| language | English |
| publishDate | 2021-06-01 |
| publisher | Universidade Federal de Viçosa (UFV) |
| record_format | Article |
| series | The Journal of Engineering and Exact Sciences |
| spelling | doaj-art-412584fe44894782994e6ef7e2f4fc312025-02-02T19:57:02ZengUniversidade Federal de Viçosa (UFV)The Journal of Engineering and Exact Sciences2527-10752021-06-017310.18540/jcecvl7iss3pp12606-01-13eActive learning of eutectic phase diagram in engineering coursesErika Figueiredo Hehnes0Paula Carolina de Souza1Júlio César Dutra2University Center of FEIUniversity Center of FEIUniversity Center of FEI The present article shows a new strategy used to cover phase diagrams for undergraduate mechanical engineering students. It is based on active learning in which students are required to investigate experimentally three different eutectic alloys by using X-ray diffraction and metallography. The first technique allows students to use Rietveld analysis to obtain the mass fraction of the present phases and they must compare their results with those obtained theoretically whilst the second one is used to characterize those phases and measured their area fractions. From these results, they can also compare them with those obtained theoretically, but considering the density of different phases. The results have shown that students understood more clearly concepts such as the lever rule, and the very interpretation of phase diagram: the liquidus and solidus curve and finally the eutectic point. https://periodicos.ufv.br/jcec/article/view/12606Eutectic phase diagram. X-ray diffraction. Metallography. |
| spellingShingle | Erika Figueiredo Hehnes Paula Carolina de Souza Júlio César Dutra Active learning of eutectic phase diagram in engineering courses The Journal of Engineering and Exact Sciences Eutectic phase diagram. X-ray diffraction. Metallography. |
| title | Active learning of eutectic phase diagram in engineering courses |
| title_full | Active learning of eutectic phase diagram in engineering courses |
| title_fullStr | Active learning of eutectic phase diagram in engineering courses |
| title_full_unstemmed | Active learning of eutectic phase diagram in engineering courses |
| title_short | Active learning of eutectic phase diagram in engineering courses |
| title_sort | active learning of eutectic phase diagram in engineering courses |
| topic | Eutectic phase diagram. X-ray diffraction. Metallography. |
| url | https://periodicos.ufv.br/jcec/article/view/12606 |
| work_keys_str_mv | AT erikafigueiredohehnes activelearningofeutecticphasediagraminengineeringcourses AT paulacarolinadesouza activelearningofeutecticphasediagraminengineeringcourses AT juliocesardutra activelearningofeutecticphasediagraminengineeringcourses |