热裂是合金铸造过程中最常见的严重铸造缺陷之一.随着镁合金材料应用范围的不断扩大和复杂薄壁铸件的增加,热裂成为镁合金商业化应用的瓶颈.全面阐述了国内外对镁合金热裂行为的测试方法,归纳出了镁合金热裂形成机制,以及镁合金中热裂倾向定量评价方法等.根据多年的深入研究结果详细总结了镁合金热裂的影响因素.同时,还介绍了镁合金热裂的理论预测方法和最新数值模拟模型.为建立稳定、统一的热裂评价标准提供了有实际价值的参考.
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