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首页> 外文会议>TMS annual meeting exhibition >Hot-Tearing of Multicomponent Al-Cu Alloys Based on Casting Load Measurements in a Constrained Permanent Mold
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Hot-Tearing of Multicomponent Al-Cu Alloys Based on Casting Load Measurements in a Constrained Permanent Mold

机译：基于约束永久铸型中铸造载荷测量的多组分Al-Cu合金的热撕裂

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摘要

Hot-tearing is a major casting defect that is often difficult to characterize, especially for multicomponent Al alloys used for cylinder head castings. The susceptibility of multicomponent Al-Cu alloys to hot-tearing during permanent mold casting were investigated using a constrained permanent mold in which the load and displacement were measured. The experimental results for hot tearing susceptibility are compared with those obtained from a hot-tearing criterion based on temperature range evaluated at fraction solids of 0.87 and 0.94. The Cu composition was varied from approximately 5-8 pet. (weight). Casting experiments were conducted without grain refining. The measured load during casting can be used to indicate the severity of hot tearing. However, when small hot-tears are present, the load variation cannot be used to detect and assess hot-tearing susceptibility.
机译：热撕裂是主要的铸件缺陷，通常难以表征，尤其是对于用于汽缸盖铸件的多组分铝合金而言。使用受约束的永久铸模，研究了多组分Al-Cu合金在永久铸模过程中对热撕裂的敏感性，并在其中测量了载荷和位移。将热撕裂敏感性的实验结果与根据基于在固含量为0.87和0.94的情况下评估的温度范围的热撕裂准则获得的结果进行比较。 Cu组成从大约5-8pet变化。 （重量）。进行铸造实验时不进行晶粒细化。铸造过程中测得的载荷可用于指示热撕裂的严重程度。但是，当存在小的热泪时，负载变化不能用于检测和评估热泪敏感性。

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