| 蛇形通道制备半固态浆料均热后的流变压铸 |
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| 引用本文： | 陈正周,毛卫民.蛇形通道制备半固态浆料均热后的流变压铸[J].材料科学与工艺,2012,20(2):70-74. |
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| 作者姓名： | 陈正周 毛卫民 |
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| 作者单位： | 北京科技大学材料科学与工程学院；浙江省慈溪市汇丽机电有限公司;北京科技大学材料科学与工程学院 |
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| 基金项目： | 国家高新技术研究发展计划资助项目( 2006AA032115)；国
家基础研究发展计划资助项目( 2011CB6056302 -1)；国家
自然科学基金资助项目( 50774007 |
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| 摘 要： | 为了研究蛇形通道制备半固态浆料并经过均热后的流变压铸性能,以A356铝合金为材料进行实验研究.结果表明:当浇注温度为680℃、均热功率为1.6～2.5 kW时,半固态浆料的微观组织可以达到均一,而且初生α(Al)的形貌更加圆整;该浆料经过流变压铸成形后,在铸态下拉伸试样的抗拉强度可达245～260 MPa,伸长率可达8.5%～13%;经过T6热处理后,拉伸试样的抗拉强度可达295～320 MPa,伸长率可达7%～11%.均热可以对浆料的整个温度进行调整来满足不同铸件的流变压铸.
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| 关 键 词： | 半固态 A356铝合金 蛇形通道 力学性能 微观组织 |
| 收稿时间： | 2011/4/28 0:00:00 |
Rheo-diecasting performance of the semi-solid slurry prepared by serpentine channel pouring and after soaked |
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| CHEN Zheng-zhou and MAO Wei-min.Rheo-diecasting performance of the semi-solid slurry prepared by serpentine channel pouring and after soaked[J].Materials Science and Technology,2012,20(2):70-74. |
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| Authors: | CHEN Zheng-zhou and MAO Wei-min |
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| Affiliation: | 1(1.School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;2.Zhejiang Province Cixi City Huili Machinery and Electric Co.Ltd.,Cixi 315333,China) |
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| Abstract: | To study theo-diecasting performance of the semi-solid slurry prepared by serpentine channel pou-
ring and after soaked,the A356 aluminum alloy was used. The results show that,under the conditions of pou-
ring temperature of 680 0C and soaking power of l.6 ~ 2. 5 kW,uniform microstructure can be achieved,and
primary a( Al) morphology become rounder. After theo-diecasting,ultimate tensile strength of the tensile test
samples can reach 245 ~ 260 MPa,elongation can reach 8. 5% ~ 13%. After T6 heat treatment,the ultimate
tensile strength can be enhanced t0 295 ~ 320 MPa,and the elongation t0 7% ~ 11% . The temperature of the
whole soaked slurry can be adjusted to meet different castings for theo-diecasting |
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| Keywords: | semi-solid A356 aluminum alloy serpentine channel mechanical properties microstructure |
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