Abstract Hot tearing is one of the most severe and irreversible casting defects for many metallic materials. In 2004, Eskin et al. published a review paper in which the development of hot tearing of aluminium alloys was evaluated (Eskin and Suyitno, 2004). Sixteen years have passed and this domain has undergone considerable development. Nevertheless, an updated systematic description of this field has not been presented. Therefore, this article presents the latest research status of the hot tearing during the casting of aluminium alloys. The first part explains the hot tearing phenomenon and its occurrence mechanism. The second part presents a detailed description and analysis of the characterisation methods of the mushy zone mechanical properties and hot tearing susceptibility. The third part presents considerable data pertaining to the mushy zone behaviour, including those of the linear contraction and load behaviour during solidification, semi-solid strength and ductility, and characteristic points related to hot tearing. The fourth part examines the effect of the composition and casting process parameters on the hot tearing susceptibility of aluminium alloys. The fifth part describes the hot tearing simulations and the associated criteria and mechanisms. Finally, recommendations for the further development of hot tearing research are presented.

中文翻译：

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铝合金铸造热撕裂研究进展

摘要 热裂是许多金属材料中最严重和不可逆的铸造缺陷之一。2004 年，Eskin 等人。发表了一篇评论论文，其中评估了铝合金热撕裂的发展（Eskin 和 Suyitno，2004 年）。十六年过去了，这个领域经历了长足的发展。然而，尚未提供对该领域的更新系统描述。因此，本文介绍了铝合金铸造过程中热裂的最新研究现状。第一部分解释了热裂现象及其发生机制。第二部分对糊状区力学性能和热裂敏感性的表征方法进行了详细的描述和分析。第三部分提供了有关糊状区行为的大量数据，包括凝固过程中的线性收缩和载荷行为、半固态强度和延展性以及与热撕裂相关的特征点。第四部分考察了成分和铸造工艺参数对铝合金热裂敏感性的影响。第五部分描述了热撕裂模拟以及相关的标准和机制。最后，提出了进一步发展热撕裂研究的建议。第四部分考察了成分和铸造工艺参数对铝合金热裂敏感性的影响。第五部分描述了热撕裂模拟以及相关的标准和机制。最后，提出了进一步发展热撕裂研究的建议。第四部分考察了成分和铸造工艺参数对铝合金热裂敏感性的影响。第五部分描述了热撕裂模拟以及相关的标准和机制。最后，提出了进一步发展热撕裂研究的建议。