首页|通过累积轧制工艺制备的Al/SiC/Cu双金属复合材料的蠕变性能

通过累积轧制工艺制备的Al/SiC/Cu双金属复合材料的蠕变性能

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本文研究了通过累积辊压结合(ARB)工艺制备的Al/SiC/Cu复合带材的微观结构演变、力学和蠕变性能。在三种蠕变载荷条件下，即225 ℃/30 MPa、225 ° C/35 MPa和275 ℃/35 MPa，在ARB过程中材料的界面处形成了厚度约17 μm的原子扩散层。生成的金属间化合物导致Al附近的界面厚度增加了40％。在恒温下，应力水平降低了 13％，对界面厚度没有显著影响，蠕变失效时间缩短了44％。在恒定温度下，蠕变曲线的第二斜率随着应力水平的增加而达到39％，然后随着温度的小幅升高而降至2％。在275 ℃/35 MPa下进行蠕变试验，样品含60％A1和40％Cu，界面处有脆性的Al2Cu金属间化合物。实验温度和应力对蠕变性能有影响，特别是应力越高，蠕变曲线的斜率越大。此外，通过晶体结构检测到动态再结晶。
Creep properties of bimetal Al/SiC/Cu composites fabricated via accumulative roll bonding process
In the present study,microstructural evolution,mechanical and creep properties of Al/SiC/Cu composite strips fabricated via accumulative roll bonding(ARB)process were studied.The obtained results showed the formation of an atomic diffusion layer with thickness of about 17 μm at the interface during the ARB under three creep loading conditions namely 30 MPa at 225 ℃,35 MPa at 225 ℃,and 35 MPa at 275 ℃.An generated intermetallic compound resulted in a 40％increase of interface thickness near Al.The stress level decreased by 13％at constant temperature with no significant effect on the interface thickness,and the creep failure time declined by 44％.It was observed that at constant temperatures,the second slope of the creep curve reached to 39％with increasing stress level,then,it dropped to 2％with a little temperature rising.After creep test under 35 MPa at 275 ℃,the sample displays the presence of 60％Al and 40％Cu,containing brittle Al2Cu intermetallic compound at the interface.Applied temperature and stress had effect on the creep properties,specially increasing the slope of creep curves with higher stresses.

creep propertyintermetallic compoundsaccumulative roll bondingmicrostructurebimetal

Basem Ali、Jasim Dheyaa J.、Bansal Pooja、Qasim Maytham T.、Brisset BJ.

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Faculty of Engineering,Warith Al-Anbiyaa University,Karbala 56001,Iraq

Department of Petroleum Engineering,Al-Amarah University College,Maysan,Iraq

Department of Biotechnology and Genetics,Jain(Deemed-to-be)University,Bengaluru,Karnataka-560069,India

Department of Allied Healthcare and Sciences,Vivekananda Global University,Jaipur,Rajasthan-303012,India

College of Health and Medical Technology,Al-Ayen University,Thi-Qar,64001,Iraq

Institut des Matériaux Jean Rouxel(IMN),UMR 6502,Polytech'Nantes,Nantes Cedex,France

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蠕变性能 金属间化合物 累积辊压 微观结构 双金属片

2024

10.1007/s11771-024-5799-9

中南大学学报(英文版)
中南大学

中南大学学报(英文版)

CSTPCDEI
影响因子：0.47
ISSN：2095-2899
年,卷(期)：2024.31(10)