• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Materials >Deformation Characteristics and Constitutive Equations for the Semi-Solid Isothermal Compression of Cold Radial Forged 6063 Aluminium Alloy
【2h】

Deformation Characteristics and Constitutive Equations for the Semi-Solid Isothermal Compression of Cold Radial Forged 6063 Aluminium Alloy

机译：冷径锻造6063铝合金半固体等温压缩的变形特性和本构剖面

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Al-Mg-Si based alloys are popular alloys used in the automotive industry. However, limited studies have been performed to investigate the microstructure, deformation characteristics, and deformation mechanism for the semi-solid 6063 alloys. In this study, the cold radial forging method and semi-solid isothermal treatment (SSIT) are proposed in the semi-solid isothermal compression (SSIC) process to fabricate high-quality semi-solid 6063 billets. The effects of deformation temperature, strain rate, and strain on the microstructure, deformation characteristics, and deformation mechanism of the SSIC of cold radial forged 6063 alloys were investigated experimentally. Constitutive equations were established based on the measured data in experiments to predict the flow stress. Results show that an average grain size in the range from 59.22 to 73.02 μm and an average shape factor in the range from 071 to 078 can be obtained in the microstructure after the cold radial forged 6063 alloys were treated with SSIT process. Four stages (i.e., sharp increase, decrease, steady state, and slow increase) were observed in the true stress- true strain curve. The correlation coefficient of the constitutive equation was obtained as 0.9796 while the average relative error was 5.01%. The deformation mechanism for SSIC of cold radial forged aluminum alloy 6063 mainly included four modes: The liquid phase flow, grain slide or grain rotation along with the liquid film, slide among solid grains, and the plastic deformation of solid grains.
机译：Al-Mg-Si基合金是汽车行业中使用的流行合金。然而，已经进行了有限的研究以研究半固体6063合金的微观结构，变形特性和变形机制。在该研究中，在半固体等温压缩（SSIC）工艺中提出了冷轧锻造方法和半固体等温处理（SSIT）以制造高质量的半固体6063坯料。实验研究了变形温度，应变率和应变对冷径向锻造6063合金SSIC的微观结构，变形特性和变形机理的影响。基于实验中的测量数据建立了构成方程，以预测流量应力。结果表明，在用SSIT工艺处理冷径向锻造6063合金的微观结构之后，在071至078的范围内的平均晶粒尺寸和平均形状因子的平均形状因子可以在微观结构中获得。在真正的应力 - 真菌应变曲线中观察到四个阶段（即，急剧增加，降低，稳态和缓慢增加）。将组成方程的相关系数获得为0.9796，而平均相对误差为5.01％。冷径向锻造铝合金SSIC的变形机制6063主要包括四种模式：液相流动，粒状载玻片或谷物旋转以及液体膜，塑料膜的载玻片，塑性变形的固体晶粒。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号