首页|Towards high-strength cold spray additive manufactured metals:Methods,mechanisms,and properties

Towards high-strength cold spray additive manufactured metals:Methods,mechanisms,and properties

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Cold spray,as a solid-state additive manufacturing process,has been attracting increasing attention from both scientific and industrial communities.However,cold-sprayed deposits generally have unfavorable mechanical properties in their as-fabricated state compared to conventionally manufactured and fusion-based additive-manufactured counterparts due to the inherent microstructural defects in the deposits(e.g.,porosity and incomplete interparticle bonding).This downside reduces its competitiveness and lim-its its wide applications as an additive manufacturing process.In the past years,many strengthening technologies have been developed or introduced to adjust the microstructure and improve the mechanical properties of cold-sprayed deposits.The term"strengthening"in this work specifically refers to improving the mechanical strength,particularly the tensile strength of the cold-sprayed bulk deposits.According to the stage that the strengthening technologies are used in the cold spray process,they can be classified into three categories:pre-process(e.g.,powder heat treatment),in-process(e.g.,powder heating,in-situ micro-forging,laser-assisted cold spray),and post-process(e.g.,post heat treatment,hot isostatic pressing,hot rolling,friction stir processing).Therefore,a comprehensive review of these strengthening technolo-gies is conducted to illuminate the possible correlations between the strengthening mechanisms and the resultant deposit microstructures and mechanical properties.This review paper aims to help researchers and engineers well understand the different strengthening methods and provide guidance for the cold spray community to develop new strengthening strategies for future high-quality mass production.

Cold sprayAdditive manufacturingStrengtheningMicrostructureDuctilityTensile strength

Shuo Yin、Ningsong Fan、Chunjie Huang、Yingchun Xie、Chao Zhang、Rocco Lupoi、Wenya Li

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Department of Mechanical,Manufacturing & Biomedical Engineering,Parsons Building,Trinity College Dublin,The University of Dublin,Dublin 2,Ireland

Institute of Materials Technology,Helmut-Schmidt-University/University of the Federal Armed Forces Hamburg,Hamburg 22043,Germany

The Key Lab of Guangdong for Modem Surface Engineering Technology,National Engineering Laboratory for Modern Materials Surface Engineering Technology,Institute of New Materials,Guangdong Academy of Sciences,Guangzhou 510651,China

College of Mechanical Engineering,Yangzhou University,Yangzhou 225127,China

State Key Laboratory of Solidification Processing,Shaanxi Key Laboratory of Friction Welding Technologies,Northwestern Polytechnical University,Xi'an 720072,China

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Science Foundation Ireland Frontiers for the Future Project国家自然科学基金国家自然科学基金国家自然科学基金China Scholarship Council-Trinity College Dublin Joint Scholarship ProgrammeInternational Cooperation Project of Guangdong Province洪堡基金

20/FFP-P/88155187547152001078520611351012019064600202021A0505030052

2024

材料科学技术(英文版)
中国金属学会 中国材料研究学会 中国科学院金属研究所

材料科学技术(英文版)

CSTPCD
影响因子:0.657
ISSN:1005-0302
年,卷(期):2024.170(3)
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