双级时效对Mg-13Gd-5Y-0.6Mn-0.5Ca挤压镁合金析出相和力学性能的影响

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中文摘要：研究了双级时效对Mg-13Gd-5Y-0.6Mn-0.5Ca挤压镁合金平衡相析出和力学性能的影响.结果表明,双级时效和单级时效均可有效提升试验镁合金的室温力学性能,但前者对于试验镁合金挤压后力学性能的提升明显高于后者,伸长率从挤压态的1.8%提升到2.5%.双级时效进一步改善试验合金性能的机理为促进Mg5Gd平衡相的析出.

外文标题：Effects of Two-stage Aging on the Precipitated Phases and Mechanical Properties of Mg-13Gd-5Y-0.6Mn-0.5Ca Extruded Magnesium Alloy

外文摘要：The effects of two-stage aging on the precipitated equilibrium phases and properties of Mg-13Gd-5Y-0.6Mn-0.5Ca extruded magnesium alloy were investigated.The results reveal that two-stage aging and single-stage aging can effectively improve the room temperature tensile properties of tested magnesium alloy,however the effects of two-stage aging is superior to that of single-stage aging,and elongation is increased from 1.8%to 2.5%.The mecha-nism for further improvement of the tested alloy by two-stage aging is characterized by promoting the aging precipita-tion of Mg5Gd equilibrium phase.

外文关键词：

Magnesium AlloyMg-13Gd-5Y-0.6MnTwo-stage AgingElongation

作者：

韦皓博、陈洁仪、吴宗钢、阮世会、李晏、杨明波

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作者单位：

重庆理工大学材料科学与工程学院,重庆 400054

关键词：

镁合金 Mg-13Gd-5Y-0.6Mn 双级时效伸长率

基金：

重庆市技术创新与应用发展专项重庆市技术创新与应用发展专项

项目编号：

cstc2019jscxmbdxX0031cstc2020jscxmsxmX0215

出版年：

2024

DOI：

10.15980/j.tzzz.2024.06.013

特种铸造及有色合金

中国机械工程学会铸造分会

特种铸造及有色合金

CSTPCD北大核心

影响因子：0.481

ISSN：1001-2249

年,卷(期)：2024.44(6)