Al<sub>2</sub>O<sub>3</sub>-TiC/1Cr18Ni9Ti扩散焊接头应力分布

沈孝芹; 李亚江; PuchkovUA; 王娟; 黄万群

Al₂O₃-TiC/1Cr18Ni9Ti扩散焊接头应力分布

1.
山东大学材料液态结构及其遗传性教育部重点实验室, 济南 250061;山东建筑大学机电学院, 济南 250101
2.
山东大学材料液态结构及其遗传性教育部重点实验室, 济南 250061;莫斯科鲍曼国立科技大学, 俄罗斯莫斯科 105005
3.
莫斯科鲍曼国立科技大学, 俄罗斯莫斯科 105005
4.
山东大学材料液态结构及其遗传性教育部重点实验室, 济南 250061

基金项目: 山东省优秀中青年基金资助项目(2006BS04004)

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- 收稿日期: 2007-11-22

Stress distribution in Al₂O₃-TiC/1Cr18Ni9Ti diffusion bonded joint

1.
Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China;School of Mechatronics, Shandong Jianzhu University, Jinan 250101, China
2.
Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China;Materials Science Department, Bauman Moscow State Technical University, Moscow 105005, Russia
3.
Materials Science Department, Bauman Moscow State Technical University, Moscow 105005, Russia
4.
Key Lab of Liquid Structure and Heredity of Materials, Ministry of Education, Shandong University, Jinan 250061, China

摘要

摘要: 用有限元方法计算了Al₂O₃-TiC/1Cr18Ni9Ti扩散焊接头的应力分布,研究了加热温度、压力和中间层对应力分布的影响。结果表明,残余轴向应力和剪切应力在试样边缘处梯度都较大,靠近中心轴,应力分布比较均匀,最大剪切应力出现在Al₂O₃-TiC/中间层界面处。在扩散焊冷却过程中,Al₂O₃-TiC/1Cr18Ni9Ti扩散焊接头最大轴向拉应力先是出现在边缘陶瓷侧,随着温度的降低,逐渐向试样中心靠近,应力值也逐渐增大。加热温度越低,轴向压应力越大。压力越大,最大轴向拉应力越小,压应力越大,但压力对剪切应力的影响较小。使用Ti-Cu-Ti复合中间层比使用Ti中间层可降低最大轴向压应力和最大剪切应力。
- Al₂O₃-TiC /
- 不锈钢 /
- 扩散焊 /
- 应力
Abstract: The stress distribution of Al₂O₃-TiC/1Cr18Ni9Ti diffusion bonded joint was calculated using the finite element method and the effects of bonding temperature, pressure and interlayer on the stress distribution were studied.The results indicate that the axial stress and the shear stress both change greatly near the sample edge, which uniform near the center.The greatest shear stress occurs at the Al₂O₃-TiC/interlayer interface.The greatest axial tensile stress shifts from the ceramic side on the sample edge to the steel side near the edge and the value increases with the temperature decreasing.The axial compressive stress increases when the bonding temperature reduces.The increasement of the pressure can reduce the maximal axial tensile stress and improve the compressive stress. The change of the pressure has little effect on the shear stress.Both of the axial tensile stress and the shear stress decrease with Ti-Cu-Ti interlayer compared with Ti interlayer.
- Al₂O₃-TiC /
- stainless steel /
- diffusion bonding /
- stress

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文章访问数: 274
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PDF下载量: 53
被引次数: 9

Al2O3-TiC/1Cr18Ni9Ti扩散焊接头应力分布

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出版历程

Stress distribution in Al2O3-TiC/1Cr18Ni9Ti diffusion bonded joint

期刊类型引用(6)

其他类型引用(3)

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出版历程

目录

Al₂O₃-TiC/1Cr18Ni9Ti扩散焊接头应力分布

Stress distribution in Al₂O₃-TiC/1Cr18Ni9Ti diffusion bonded joint