Preparation of NiTip/Al composites with controllable phase transformation and damping behavior by friction stir processing

WU Xiao ¹JIANG HongJie ¹LI WangYun ²LIU ChongYu ³HUANG HongFeng ³LIU ShuHui ⁴WEI LiLi⁴

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作者信息

1. School of Material Science and Engineering,Guilin University of Technology,Guilin 541004,China;Key Laboratory of New Processing Technology for Nonferrous Metal & Materials,Ministry of Education,Guilin University of Technology,Guilin 541004,China
2. School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin 541004,China
3. School of Material Science and Engineering,Guilin University of Technology,Guilin 541004,China
4. Key Laboratory of New Processing Technology for Nonferrous Metal & Materials,Ministry of Education,Guilin University of Technology,Guilin 541004,China
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Abstract

The NiTip/1060Al composites were prepared using a pre-aging and friction stir method(FSP)to enhance the low-temperature damping performance of the aluminum alloy and accommodate various service temperatures.The bonding between NiTi particles and the 1060A1 matrix is well established after FSP,and no new phases are formed in the composites.The phase-transformation peak temperature of NiTip/1060Al composites gradually shifts to lower temperatures with increased aging temperature of NiTi particles.At room temperature,the 550℃-NiTip/1 060Al composite exhibits superior damping performance,with an internal friction value 144％higher than that of the FSP-1060A1 alloy.However,at-91℃,the 650℃-NiTip/1060Al composite demonstrates better damping performance,with an internal friction value 158％higher than that of the FSP-1060A1 alloy.The NiTip/1060Al composites exhibit the internal friction peak of NiTi phase-transformation in the temperature range from-91℃ to 60℃.This characteristic results in significantly better damping performance compared to the FSP-1060A1 alloy and other high-damping aluminum matrix composites.

Key words

NiTi particle/aluminum matrix composites/phase transformation/damping behavior/friction stir processing

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基金项目

National Natural Science Foundation of China(52061011)

Guangxi Natural Science Foundation(2022GXNSFAA035574)

Science and Technology Project of Guangxi(GKAD22035039)

出版年

2024

中国科学:技术科学(英文版)

中国科学院

中国科学:技术科学(英文版)

CSTPCDEI

影响因子：1.056

ISSN：1674-7321

参考文献量50

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