Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential
Abstract Superplastic materials are capable of exhibiting large tensile elongation at elevated temperature, which is of great industrial significance because it forms the basis of a fabrication method to produce complex shapes. Superplasticity with elongation larger than 500% has been widely realize...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2017
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/10a44714eaa64a37b7485d21b397eee0 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:10a44714eaa64a37b7485d21b397eee0 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:10a44714eaa64a37b7485d21b397eee02021-12-02T15:05:34ZDynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential10.1038/s41598-017-09493-72045-2322https://doaj.org/article/10a44714eaa64a37b7485d21b397eee02017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09493-7https://doaj.org/toc/2045-2322Abstract Superplastic materials are capable of exhibiting large tensile elongation at elevated temperature, which is of great industrial significance because it forms the basis of a fabrication method to produce complex shapes. Superplasticity with elongation larger than 500% has been widely realized in many metals and alloys, but seldomly been succeeded in low carbon low alloy steel, even though it is commercially applied in the largest quantity. Here we report ultrahigh superplastic elongation of 900–1200% in the FeMnAl low carbon steels at high strain rate of 10−2–10−3 s−1. Such high-strain-rate superplasticity was attributed to dynamic austenite reverse phase transformation from a heavily cold rolled ferrite to fine-grained ferrite/austenite duplex microstructure and subsequent limited dynamic grain coarsening, under which a large fraction of high angle boundaries can be resulted for superplastic deformation. It is believed that this finding of the low carbon low alloy steel with ultrahigh superplasticity and relative low cost would remarkably promote the application of superplastic forming technique in automobile, aeronautical, astronautical and other fields.Wenquan CaoChongxiang HuangChang WangHan DongYuqing WengNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-6 (2017) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Medicine R Science Q |
| spellingShingle |
Medicine R Science Q Wenquan Cao Chongxiang Huang Chang Wang Han Dong Yuqing Weng Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential |
| description |
Abstract Superplastic materials are capable of exhibiting large tensile elongation at elevated temperature, which is of great industrial significance because it forms the basis of a fabrication method to produce complex shapes. Superplasticity with elongation larger than 500% has been widely realized in many metals and alloys, but seldomly been succeeded in low carbon low alloy steel, even though it is commercially applied in the largest quantity. Here we report ultrahigh superplastic elongation of 900–1200% in the FeMnAl low carbon steels at high strain rate of 10−2–10−3 s−1. Such high-strain-rate superplasticity was attributed to dynamic austenite reverse phase transformation from a heavily cold rolled ferrite to fine-grained ferrite/austenite duplex microstructure and subsequent limited dynamic grain coarsening, under which a large fraction of high angle boundaries can be resulted for superplastic deformation. It is believed that this finding of the low carbon low alloy steel with ultrahigh superplasticity and relative low cost would remarkably promote the application of superplastic forming technique in automobile, aeronautical, astronautical and other fields. |
| format |
article |
| author |
Wenquan Cao Chongxiang Huang Chang Wang Han Dong Yuqing Weng |
| author_facet |
Wenquan Cao Chongxiang Huang Chang Wang Han Dong Yuqing Weng |
| author_sort |
Wenquan Cao |
| title |
Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential |
| title_short |
Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential |
| title_full |
Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential |
| title_fullStr |
Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential |
| title_full_unstemmed |
Dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential |
| title_sort |
dynamic reverse phase transformation induced high-strain-rate superplasticity in low carbon low alloy steels with commercial potential |
| publisher |
Nature Portfolio |
| publishDate |
2017 |
| url |
https://doaj.org/article/10a44714eaa64a37b7485d21b397eee0 |
| work_keys_str_mv |
AT wenquancao dynamicreversephasetransformationinducedhighstrainratesuperplasticityinlowcarbonlowalloysteelswithcommercialpotential AT chongxianghuang dynamicreversephasetransformationinducedhighstrainratesuperplasticityinlowcarbonlowalloysteelswithcommercialpotential AT changwang dynamicreversephasetransformationinducedhighstrainratesuperplasticityinlowcarbonlowalloysteelswithcommercialpotential AT handong dynamicreversephasetransformationinducedhighstrainratesuperplasticityinlowcarbonlowalloysteelswithcommercialpotential AT yuqingweng dynamicreversephasetransformationinducedhighstrainratesuperplasticityinlowcarbonlowalloysteelswithcommercialpotential |
| _version_ |
1718388748981370880 |