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Enhancing the bake-hardening responses of a pre-aged Al-Mg-Si alloy by trace Sn additions
Alternative TitleEnhancing the bake-hardening responses of a pre-aged Al-Mg-Si alloy by trace Sn additions
Gang Lu1; Shuai Nie1; Jianjun Wang1; Ying Zhang3; Tianhai Wu1; Yujie Liu1; Chunming Liu1
2020
Source Publication材料科学技术:英文版
ISSN1005-0302
Volume000Issue:005Pages:107-112
AbstractEffects of additions of trace Sn on the bake-hardening responses of a pre-aged Al-0.85 Mg-0.85 Si(in wt%)alloy were investigated through mechanical tests,differential scanning calorimetry,electrical resistivity and transmission electron microscopy.Results indicate that trace Sn additions reduced the number density of pre-aging clusters by inhibiting the formation of unstable counterpart during pre-aging treatment,leading to low strength and high supersaturation of solute atoms.In a subsequent paint-bake treatment,the presence of highly supersaturated solute atoms and high concentrated free vacancies moderated the activation energy barrier ofβ’’phase and thus kinetically accelerated the formation ofβ’’.Consequently,the trace Sn additions enhanced the bake-hardening responses of the pre-aged alloys significantly.The Sn-containing pre-aged Al-Mg-Si alloys with low strength and great bake-hardening responses hold promising potential for automotive body skin applications.
KeywordAl-Mg-Si alloy Pre-aging Trace Sn Bake-hardening responses Precipitation kinetics
Indexed ByCSCD
Language中文
Funding Project[National Key R&D Program of China]
CSCD IDCSCD:6664539
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/156801
Collection中国科学院金属研究所
Affiliation1.Key Laboratory for Anisotropy and Texture of Materials(MoE
2.The State Key Laboratory of Rolling and Automation,Northeastern University
3.中国科学院金属研究所
4.Research Center for Metallic Wires,Northeastern University
Recommended Citation
GB/T 7714
Gang Lu,Shuai Nie,Jianjun Wang,et al. Enhancing the bake-hardening responses of a pre-aged Al-Mg-Si alloy by trace Sn additions[J]. 材料科学技术:英文版,2020,000(005):107-112.
APA Gang Lu.,Shuai Nie.,Jianjun Wang.,Ying Zhang.,Tianhai Wu.,...&Chunming Liu.(2020).Enhancing the bake-hardening responses of a pre-aged Al-Mg-Si alloy by trace Sn additions.材料科学技术:英文版,000(005),107-112.
MLA Gang Lu,et al."Enhancing the bake-hardening responses of a pre-aged Al-Mg-Si alloy by trace Sn additions".材料科学技术:英文版 000.005(2020):107-112.
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