Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain Rates
W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> composites were fabricated by the pressure infiltration method. The composites were compressed by means of a split Hopkinson pressure bar (SHPB) with strain rates of 8...
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2021-09-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/19/5563 |
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| author | Zhe Wu Yang Zhang Haifeng Jiang Shuai Zhao Qingnan Wang |
| author_facet | Zhe Wu Yang Zhang Haifeng Jiang Shuai Zhao Qingnan Wang |
| author_sort | Zhe Wu |
| collection | DOAJ |
| description | W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> composites were fabricated by the pressure infiltration method. The composites were compressed by means of a split Hopkinson pressure bar (SHPB) with strain rates of 800 and 1600 s<sup>−1</sup> at different temperatures. The microstructure of the composites after dynamic compressing was analyzed by transmission electron microscopy (TEM). Observation revealed that there were high-density dislocations, stacking faults, twins, and recrystallization existing in the copper alloy matrix of the composites. High-density dislocations, stacking faults, and twins were generated due to the significant plastic deformation of the copper alloy matrix under dynamic load impact. We also found that the precipitated phase of the matrix played a role in the second phase strengthening; recrystallized microstructures of copper alloy were generated due to dynamic recrystallization of the copper alloy matrix under dynamic compression at high temperatures. |
| first_indexed | 2024-03-10T06:57:31Z |
| format | Article |
| id | doaj.art-f6bf607d0e9d4ea3ae437355458e858b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T06:57:31Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
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| series | Materials |
| spelling | doaj.art-f6bf607d0e9d4ea3ae437355458e858b2023-11-22T16:23:42ZengMDPI AGMaterials1996-19442021-09-011419556310.3390/ma14195563Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain RatesZhe Wu0Yang Zhang1Haifeng Jiang2Shuai Zhao3Qingnan Wang4College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaCollege of Science, Northeast Forestry University, Harbin 150040, ChinaCollege of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaCollege of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaCollege of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin 150040, ChinaW<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> composites were fabricated by the pressure infiltration method. The composites were compressed by means of a split Hopkinson pressure bar (SHPB) with strain rates of 800 and 1600 s<sup>−1</sup> at different temperatures. The microstructure of the composites after dynamic compressing was analyzed by transmission electron microscopy (TEM). Observation revealed that there were high-density dislocations, stacking faults, twins, and recrystallization existing in the copper alloy matrix of the composites. High-density dislocations, stacking faults, and twins were generated due to the significant plastic deformation of the copper alloy matrix under dynamic load impact. We also found that the precipitated phase of the matrix played a role in the second phase strengthening; recrystallized microstructures of copper alloy were generated due to dynamic recrystallization of the copper alloy matrix under dynamic compression at high temperatures.https://www.mdpi.com/1996-1944/14/19/5563W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> compositesmicrostructurehigh temperaturedynamic compression |
| spellingShingle | Zhe Wu Yang Zhang Haifeng Jiang Shuai Zhao Qingnan Wang Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain Rates Materials W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> composites microstructure high temperature dynamic compression |
| title | Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain Rates |
| title_full | Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain Rates |
| title_fullStr | Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain Rates |
| title_full_unstemmed | Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain Rates |
| title_short | Microstructure Evolution Mechanism of W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> Composites under Dynamic Compression at Different Temperatures and Strain Rates |
| title_sort | microstructure evolution mechanism of w sub f sub cu sub 82 sub al sub 10 sub fe sub 4 sub ni sub 4 sub composites under dynamic compression at different temperatures and strain rates |
| topic | W<sub>f</sub>/Cu<sub>82</sub>Al<sub>10</sub>Fe<sub>4</sub>Ni<sub>4</sub> composites microstructure high temperature dynamic compression |
| url | https://www.mdpi.com/1996-1944/14/19/5563 |
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