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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Forging on Microstructure, Texture, and Uniaxial Properties of Cast AZ31B Alloy
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Effect of Forging on Microstructure, Texture, and Uniaxial Properties of Cast AZ31B Alloy

机译：锻造对铸造AZ31B合金微观结构，质地和单轴性质的影响

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摘要

The effect of open-die hot forging on cast AZ31B magnesium alloy was investigated in terms of the evolution of microstructure, texture, and mechanical properties. A refined microstructure with strong basal texture was developed in forged material. A significant increase in tensile yield and ultimate strengths by 143 and 23%, respectively, was determined as well. When tested in compression at room temperature, the forged alloy displayed significant in-plane asymmetry and unchanged yield strength compared to the cast alloy owing to the activation of {1012} < 1011 > extension twins in both the cast and forged conditions. However, the ultimate compressive strength for the forged material increased by 22 percent compared to the as-cast material. Microstructure and texture analysis of the fracture samples confirmed that the deformation of the forged samples was dominated by slip during tension and twin in compression. In comparison, both slip and twin were observed in the cast samples for similar testing conditions. The increase in strength of forging was attributed to the refinement of grains and the formation of strong basal texture, which activated the non-basal slip on the prismatic and pyramidal slip systems instead of extension
机译：在微观结构，质地和机械性能的演变方面，研究了开孔热锻对铸造AZ31B镁合金的影响。锻造材料开发了具有强大基底纹理的精细组织。也分别测定拉伸产率和极限强度的显着增加，也是分别的143和23％。当在室温下进行压缩时，由于浇铸和伪造条件的延伸双胞胎的激活，与铸造合金相比，锻造合金显示出显着的面内不对称和不变的屈服强度。然而，与铸造材料相比，锻造材料的最终抗压强度增加了22％。骨折样品的微观结构和纹理分析证实，锻造样品的变形在张力和双胞胎中的张力期间通过滑动来支配。相比之下，在施放样品中观察到滑动和双胞胎，用于类似的测试条件。锻造强度的增加归因于细粒和强大的基础纹理的形成，它激活了棱柱形和金字塔滑动系统的非基础滑动而不是延伸

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