鋁合金擴(kuò)散連接技術(shù)與界面質(zhì)量調(diào)控方法研究進(jìn)展
中圖分類號:TG457.14 文獻(xiàn)標(biāo)志碼:A
文章編號:1001-4934(2025)03-0094-11
Research progress on diffusion bonding technology and interface quality control methods of aluminum alloys
CHENYao1,JIANGSengbao1*,RONGJian1,WANGYushengPU Rongseng' ,LI Xifeng2,WANG Zengyu2
(1. Chengdu Aircraft Industrial (Group) Co. Ltd, Chengdu 61OooO Sichuan,China; 2. School of Materials Science and Engineering,Shanghai Jiao Tong University, Shanghai ,China)
Abstract: As an important light-weight and high-strength metal material, aluminum alloy has been widely used in aerospace,automobile,ship and other fields. As an advanced solid-state welding method,diffusion bonding technology has a broad application prospect in the field of aluminum alloy connection because of the advantages of high strength,small heat-affected zone and small deformation. However,the interface quality control in the process of diffusion bonding has always been difficult in the application of this technology. The dense and stable oxide film has been exist in the surface of aluminum alloy,which seriously hinders the diffusion bonding process,and then affects the quality of the diffusion joint. Breaking through the problem of diffusion bonding of aluminum alloys can provide a solid foundation for the broad application of superplastic forming and diffusion bonding (SPF/DB) technology. Based on the research progress of aluminum alloy diffusion bonding technology and interface quality control methods at home and abroad, this paper systematically analyzes the influence factors of aluminum alloy and aluminum-magnesium dissimilar alloy diffusion bonding and postwelding heat treatment,and prospects the application prospect and future research direction of aluminum alloy diffusion bonding technology in aerospace field.
Key words:aluminum alloys;diffusion bonding;oxide film;interface quality
0 引言
鋁合金具有低密度、高彈性模量、高比強/比剛度等優(yōu)點,作為結(jié)構(gòu)材料被越來越多地應(yīng)用于航空航天等多個領(lǐng)域[1],并已廣泛用于需要減重、中等強度和耐腐蝕性的結(jié)構(gòu)件中,例如機(jī)身大梁、桁架、支柱和直升機(jī)旋翼部件2]。(剩余17039字)
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