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复合阻隔
相关语句
  composite isolation
     Isolation Effectiveness of Composite Isolation and Its Application in Diffusion Bonding
     复合阻隔法的阻隔效应原理及其在扩散连接中的应用
短句来源
     Aiming to diffusion bond intermetallic TiAl turbine to steel 40Cr axis, composite isolation diffusion bonding technology was propounded. The isolation effectiveness of the diffusion bonding technology with composite isolation layer was investigated ,and the principles of the selecting atomic radius and atomic electronegativity for the layer were found by virtue of the diffusion bondability of materials.
     以TiAl金属间化合物增压涡轮与 4 0Cr钢轴的扩散连接为背景 ,提出了复合阻隔法扩散连接工艺 ,并探讨了阻隔效应原理 ,建立了从材料的扩散连接性角度出发的原子半径、原子电负性阻隔层选择原则。
短句来源
  相似匹配句对
     Differentiation of Compound Mappings
     映射的微分
短句来源
     Compound Modification Asphalt Waterproof Materials
     改性沥青防水材料
短句来源
     Barrier Resins
     阻隔性树脂
短句来源
     High obstruct packaging
     漫谈高阻隔包装
短句来源
     Anti-static of Barrier Packaging Material
     阻隔包装材料静电防护
短句来源
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Aiming to diffusion bond intermetallic TiAl turbine to steel 40Cr axis, composite isolation diffusion bonding technology was propounded. The isolation effectiveness of the diffusion bonding technology with composite isolation layer was investigated ,and the principles of the selecting atomic radius and atomic electronegativity for the layer were found by virtue of the diffusion bondability of materials. In this paper, according to isolation effectiveness principle ,intermetallic TiA1 and steel 40Cr are diffusion...

Aiming to diffusion bond intermetallic TiAl turbine to steel 40Cr axis, composite isolation diffusion bonding technology was propounded. The isolation effectiveness of the diffusion bonding technology with composite isolation layer was investigated ,and the principles of the selecting atomic radius and atomic electronegativity for the layer were found by virtue of the diffusion bondability of materials. In this paper, according to isolation effectiveness principle ,intermetallic TiA1 and steel 40Cr are diffusion bonded successfully by using a composite isolation layer Ti/V/Cu. In this case, layers of infinite solid solutions can be found at the V/Cu and Cu/40Cr interfaces which are favorable to the bonding strength, and a diphase Ti3 Al + TiAl layer and a Ti solid solution which enhance the strength of the joint are obtained at the TiAVTI interface. The interface of Ti/V/Cu/40Cr was free from TiC, Ti 3Al+FeAI FeAl 2 intermetallic compounds and other brittle phases, and the strength of the joint was as high as 42OMPa. Isolation effectiveness principle is effective to the selecting of composite isolation layer.

以TiAl金属间化合物增压涡轮与 4 0Cr钢轴的扩散连接为背景 ,提出了复合阻隔法扩散连接工艺 ,并探讨了阻隔效应原理 ,建立了从材料的扩散连接性角度出发的原子半径、原子电负性阻隔层选择原则。利用本文的扩散连接阻隔效应原理 ,确定了TiAl金属间化合物增压涡轮与 4 0Cr钢轴的扩散连接复合阻隔层为Ti/V/Cu ,由此得到的扩散连接接头在V/Cu及Cu/ 4 0Cr的连接界面处出现了对连接性能有利的无限固溶体层 ,在TiAl/Ti的接触面上生成了能够强化接头强度的Ti3 Al+TiAl双相层和Ti的固溶体层 ,与TiAl/ 4 0Cr直接扩散连接相比 ,Ti/V/Cu复合阻隔层的加入 ,避免了在TiAl/4 0Cr的接触面上TiC、Ti3 Al、FeAl、FeAl2 金属间化合物脆性相的产生 ,接头强度高达4 2 0MPa ,因此利用本文的阻隔效应原理可以很好地进行复合阻隔层的选择

 
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