Influence of intensification pressures on pores in die-cast ADC12 alloys
Die casting process is widely applied in making Al parts. However, due to high speed of liquid metal flow in the die cavity, gases are prone to be entrapped in the filling, resulting in porosity defects. The X-ray computed tomography scanning technique was used to detect the pores in die-cast ADC1...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Foundry Journal Agency
2019-05-01
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| Series: | China Foundry |
| Subjects: | |
| Online Access: | http://ff.foundryworld.com/uploadfile/2019052848291289.pdf |
| _version_ | 1818486325843591168 |
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| author | Chun-tao Wang Jie Yao Hai-dong Zhao |
| author_facet | Chun-tao Wang Jie Yao Hai-dong Zhao |
| author_sort | Chun-tao Wang |
| collection | DOAJ |
| description | Die casting process is widely applied in making Al parts. However, due to high speed of liquid metal
flow in the die cavity, gases are prone to be entrapped in the filling, resulting in porosity defects. The X-ray
computed tomography scanning technique was used to detect the pores in die-cast ADC12 alloys with different
intensification pressures. The three-dimensional features of pores including pore size, number, sphericity have
been obtained. The effect of different intensification pressures on two different kinds of pores, namely gas-pores
and shrinkage pores, was analyzed. The results show that with increasing the pressure, the pore fractions and
quantity gradually decrease. When the pressure increased to 85 MPa, the pores from gas entrapment during the
mold filling were compressed, leading to a lower porosity fraction. The pressure cannot affect the pores in the
samples with a thin wall (2 mm) due to a great solidification rate. |
| first_indexed | 2024-12-10T16:21:27Z |
| format | Article |
| id | doaj.art-0651a24a3a2643d5aa14b873f17682fb |
| institution | Directory Open Access Journal |
| issn | 1672-6421 1672-6421 |
| language | English |
| last_indexed | 2024-12-10T16:21:27Z |
| publishDate | 2019-05-01 |
| publisher | Foundry Journal Agency |
| record_format | Article |
| series | China Foundry |
| spelling | doaj.art-0651a24a3a2643d5aa14b873f17682fb2022-12-22T01:41:48ZengFoundry Journal AgencyChina Foundry1672-64211672-64212019-05-0116318418910.1007/s41230-019-8171-1Influence of intensification pressures on pores in die-cast ADC12 alloysChun-tao Wang0Jie Yao1Hai-dong Zhao2Ningbo Heli Mould Technology Co., Ltd., Industrial Park, Xiangshan County, Ningbo 315700, ChinaNingbo Heli Mould Technology Co., Ltd., Industrial Park, Xiangshan County, Ningbo 315700, ChinaNational Engineering Research Center of Near-net Shape Forming for Metallic Materials, South China University of Technology, Guangzhou 510641, ChinaDie casting process is widely applied in making Al parts. However, due to high speed of liquid metal flow in the die cavity, gases are prone to be entrapped in the filling, resulting in porosity defects. The X-ray computed tomography scanning technique was used to detect the pores in die-cast ADC12 alloys with different intensification pressures. The three-dimensional features of pores including pore size, number, sphericity have been obtained. The effect of different intensification pressures on two different kinds of pores, namely gas-pores and shrinkage pores, was analyzed. The results show that with increasing the pressure, the pore fractions and quantity gradually decrease. When the pressure increased to 85 MPa, the pores from gas entrapment during the mold filling were compressed, leading to a lower porosity fraction. The pressure cannot affect the pores in the samples with a thin wall (2 mm) due to a great solidification rate.http://ff.foundryworld.com/uploadfile/2019052848291289.pdfdie castingintensification pressureporosityX-ray computed tomography |
| spellingShingle | Chun-tao Wang Jie Yao Hai-dong Zhao Influence of intensification pressures on pores in die-cast ADC12 alloys China Foundry die casting intensification pressure porosity X-ray computed tomography |
| title | Influence of intensification pressures on pores in die-cast ADC12 alloys |
| title_full | Influence of intensification pressures on pores in die-cast ADC12 alloys |
| title_fullStr | Influence of intensification pressures on pores in die-cast ADC12 alloys |
| title_full_unstemmed | Influence of intensification pressures on pores in die-cast ADC12 alloys |
| title_short | Influence of intensification pressures on pores in die-cast ADC12 alloys |
| title_sort | influence of intensification pressures on pores in die cast adc12 alloys |
| topic | die casting intensification pressure porosity X-ray computed tomography |
| url | http://ff.foundryworld.com/uploadfile/2019052848291289.pdf |
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