柔性受压对钨丝-镍复合电铸层微观结构和抗拉强度的影响

发布时间：2018-03-26 11:15

  本文选题：柔性受压　切入点：电铸　出处：《中国有色金属学报》2017年04期

【摘要】：在钨丝增强镍的电铸制造过程中,利用柔性压紧轮补充电沉积区域的电铸液,并摩擦与挤压复合电铸层,以提高钨丝-镍复合电铸层的抗拉强度。研究柔性受压条件对复合电铸层表面形貌、断口形貌和抗拉强度的影响。结果表明:柔性压紧轮对复合电铸层的摩擦与挤压作用显著减少表面孔隙并细化晶粒;其输送电铸液的作用能够防止复合电铸层内部出现空洞;柔性受压条件对复合电铸层抗拉强度的提升效果随着钨丝体积分数的增加而越发显著,当钨丝体积分数为50%时,抗拉强度提升18%,达到1558 MPa。
[Abstract]:In the electroforming process of tungsten wire reinforced nickel, the flexible compaction wheel was used to replenish the electroforming solution in the electrodeposition area, and the composite electroforming layer was rubbed and extruded. In order to improve the tensile strength of tungsten wire / nickel composite electroforming layer, the surface morphology of composite electroforming layer under flexible compression condition was studied. The results show that the friction and extrusion effects of flexible compaction wheel on the composite electroforming layer can significantly reduce the surface porosity and refine the grain size, and the effect of the electroforming solution can prevent the formation of voids in the composite electroforming layer. The effect of flexible compression on the tensile strength of composite electroforming layer is more and more remarkable with the increase of tungsten wire volume fraction. When the volume fraction of tungsten wire is 50, the tensile strength increases by 18% to 1558 MPA.
【作者单位】： 无锡职业技术学院机械技术学院;
【基金】：国家自然科学基金资助项目(51505192) 江苏高等学校优秀科技创新团队项目 江苏省高校“青蓝工程”优秀青年骨干教师培养项目~~
【分类号】：TQ153.4
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本文编号：1667661