减薄对az31镁合金流动成形组织和纳米力学性能的影响

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materiali in tehnologije Pub Date : 2023-01-25 DOI:10.17222/mit.2022.659

Han Zhang, Tingting Zhang, J. Zhang, Zhihang Yan, Wen-xian Wang

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引用次数: 0

摘要

研究了流动成形AZ31B镁合金筒体时降低减薄速率对其显微组织、取向、微观、纳米和宏观力学性能的影响。结果表明:镁合金在流动成形后进行不同程度的塑性变形时，晶体内的晶粒尺寸和位错密度发生较大变化，组织演化模式对材料的力学性能有显著影响。采用纳米压痕法和硬度法得到了圆柱形零件的应力应变曲线。这对提高镁合金的力学性能具有重要意义。

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EFFECT OF THICKNESS REDUCTIONS ON MICROSTRUCTURE AND NANO-MECHANICAL PROPERTIES OF AZ31 MAGNESIUM ALLOY IN FLOW-FORMING

The effect of reducing the thinning rate when flow forming AZ31B magnesium alloy barrels on the microstructure, crystal orientation, micro-, nano- and macro-mechanical properties was investigated. The results demonstrate that when the magnesium alloy undergoes different degrees of plastic deformation after flow forming, the grain size and dislocation density inside the crystal change greatly, and the evolution pattern of the organization has a significant effect on the mechanical properties of the materials. The stress-strain curve of the cylindrical parts was obtained by nano-indentation and hardness. This is important to improve the mechanical properties of the magnesium alloy.

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来源期刊

Materiali in tehnologije 工程技术-材料科学：综合

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal MATERIALI IN TEHNOLOGIJE/MATERIALS AND TECHNOLOGY is a scientific journal, devoted to original papers and review scientific papers concerned with the areas of fundamental and applied science and technology. Topics of particular interest include metallic materials, inorganic materials, polymers, vacuum technique and lately nanomaterials.