人工时效对激光选区熔化AlMg_(4.5)Sc_(0.55)Mn_(0.5)Zr_(0.2)合金显微组织和力学性能的影响
Effect of artificial ageing on microstructures and mechanical properties of selective laser melted AlMg_(4.5)Sc_(0.55)Mn_(0.5)Zr_(0.2)alloy
查看参考文献31篇
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文摘
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采用激光选区熔化制备AlMg_(4.5)Sc_(0.55)Mn_(0.5)Zr_(0.2)合金,研究人工时效工艺参数对合金维氏硬度的影响规律,分析沉积态和优选时效态合金的室温拉伸性能和显微组织。结果表明:人工时效使该合金的维氏硬度由102HV提升至140HV以上。随着时效温度升高(305~335℃)或时效时间延长(1.5~48 h),维氏硬度呈现先增加、再降低、最后逐渐趋于稳定的规律。在315℃时效3 h或12 h后,合金的室温拉伸性能基本相当,无明显的各向异性;抗拉强度和屈服强度分别达到470MPa和410MPa,断后伸长率保持在15.0%。力学性能的提升得益于人工时效过程中弥散析出且与基体共格的纳米增强颗粒Al3(Sc,Zr)。 |
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其他语种文摘
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AlMg_(4.5)Sc_(0.55)Mn_(0.5)Zr_(0.2)alloys were fabricated by selective laser melting.The effects of artificial ageing parameters on Vickers hardness of the alloy were investigated.The room temperature tensile properties and microstructures of as-built and optimized artificial ageing treated alloys were analyzed.Results indicate that the Vickers hardness of the alloy increases from 102HV to more than 140HV by artificial ageing treatment.As the rising of ageing temperature,ranging from 305 ℃to 335℃,or prolongation of the ageing duration,from 1.5 hto 48 h,Vickers hardness presents increasing first,then decreasing and finally trends to be stable.The room temperature tensile properties of the alloys aged at 315 ℃ for 3 hor 12 hare almost equal,and there is no obvious anisotropy.The ultimate tensile strength and yield strength reach 470MPa and 410MPa respectively,with elongation of about 15.0%.The improvement of mechanical properties is due to the dispersion precipitation of nano-reinforced particles Al_3(Sc,Zr),which possess a coherent interface with the matrix during artificial ageing. |
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来源
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材料工程
,2022,50(2):84-93 【核心库】
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DOI
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10.11868/j.issn.1001-4381.2021.000273
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关键词
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激光选区熔化
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AlMg_(4.5)Sc_(0.55)Mn_(0.5)Zr_(0.2)合金
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人工时效
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显微组织
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力学性能
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地址
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中国航发北京航空材料研究院, 北京, 100095
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北京市先进铝合金材料及应用工程技术研究中心, 北京市先进铝合金材料及应用工程技术研究中心, 北京, 100095
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航发优材(镇江)增材制造有限公司, 江苏, 镇江, 212132
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4381 |
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学科
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金属学与金属工艺 |
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文献收藏号
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CSCD:7201676
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参考文献 共
31
共2页
|
|
1.
张学军. 3D打印技术研究现状和关键技术.
材料工程,2016,44(2):122-128
|
CSCD被引
114
次
|
|
|
|
|
2.
张家莲. 选区激光熔化技术制备金属材料研究进展.
激光与光电子学进展,2019,56(10):100003
|
CSCD被引
14
次
|
|
|
|
|
3.
马如龙. 选区激光熔化铝合金的研究进展.
中国有色金属学报,2020,30(12):2773-2788
|
CSCD被引
22
次
|
|
|
|
|
4.
朱海红. 高强铝合金的激光选区熔化成形研究现状.
激光与光电子学进展,2018,55(1):011402
|
CSCD被引
7
次
|
|
|
|
|
5.
Wang P. A review of particulate-reinforced aluminum matrix composites fabricated by selective laser melting.
Transactions of Nonferrous Metals Society of China,2020,30(8):2001-2034
|
CSCD被引
30
次
|
|
|
|
|
6.
Wang Y. Effect of hot isostatic pressing on nanoparticles reinforced AlSi_(10)Mg produced by selective laser melting.
Materials Science &Engineering:A,2020,788:139570
|
CSCD被引
2
次
|
|
|
|
|
7.
唐鹏钧. 激光选区熔化AlSi7MgTi合金显微组织与性能.
材料工程,2020,48(11):116-123
|
CSCD被引
3
次
|
|
|
|
|
8.
侯伟. 选区激光熔化成形AlSi10Mg组织与拉伸性能的各向异性研究.
中国激光,2018,45(7):0702003
|
CSCD被引
16
次
|
|
|
|
|
9.
闫泰起. 退火温度对激光选区熔化AlSi_(10)Mg合金微观组织及拉伸性能的影响.
机械工程学报,2020,56(8):55-63
|
CSCD被引
1
次
|
|
|
|
|
10.
Zhang H. Influence of heat treatment on corrosion behavior of rare earth element Sc modified Al-Mg alloy processed by selective laser melting.
Applied Surface Science,2020,509:145330
|
CSCD被引
8
次
|
|
|
|
|
11.
Ma R. Effect of bimodal microstructure on the tensile properties of selective laser melting Al-Mg-Sc-Zr alloy.
Journal of Alloys and Compounds,2020,815:152422
|
CSCD被引
5
次
|
|
|
|
|
12.
Spierings A B. SLM-processed Sc-and Zr-modified Al-Mg alloy:mechanical properties and microstructural effects of heat treatment.
Materials Science & Engineering:A,2017,701:264-273
|
CSCD被引
46
次
|
|
|
|
|
13.
Ma R. Manipulating the microstructure and tensile properties of selective laser melted Al-Mg-Sc-Zr alloy through heat treatment.
Journal of Alloys and Compounds,2020,831:154773
|
CSCD被引
4
次
|
|
|
|
|
14.
Ma R. Enhanced strength of the selective laser melted Al-Mg-Sc-Zr alloy by cold rolling.
Materials Science &Engineering:A,2020,775:138975
|
CSCD被引
3
次
|
|
|
|
|
15.
Shi Y. Characterisation of a novel Sc and Zr modified Al-Mg alloy fabricated by selective laser melting.
Materials Letters,2017,196:347-350
|
CSCD被引
3
次
|
|
|
|
|
16.
Yang K V. Columnar to equiaxed transition in Al-Mg(-Sc)-Zr alloys produced by selective laser melting.
Scripta Materialia,2018,145:113-117
|
CSCD被引
19
次
|
|
|
|
|
17.
Shi Y. Effect of platform temperature on the porosity,microstructure and mechanical properties of an AlMgScZr alloy fabricated by selective laser melting.
Materials Science &Engineering:A,2018,732:41-52
|
CSCD被引
6
次
|
|
|
|
|
18.
宋立奇. 激光选区熔化成形制备高强Al-Mg-Sc合金的组织与性能.
材料工程,2020,48(11):124-130
|
CSCD被引
4
次
|
|
|
|
|
19.
顾冬冬. 航空航天高性能金属材料构件激光增材制造.
中国激光,2020,47(5):0500002
|
CSCD被引
134
次
|
|
|
|
|
20.
Zhang H. Influence of scanning strategy and parameter on microstructural feature,residual stress and performance of Sc and Zr modified Al-Mg alloy produced by selective laser melting.
Materials Science & Engineering:A,2020,788:139593
|
CSCD被引
18
次
|
|
|
|
|
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