钛板表面处理工艺对钛板与复合材料粘接性能影响

玻璃钢/复合材料 ›› 2019, Vol. 0 ›› Issue (1): 28-35.

钛板表面处理工艺对钛板与复合材料粘接性能影响

董炜¹, 黎增山^1*, 崔海超²

1.北京航空航天大学航空科学与工程学院,北京100191;
2.中航复合材料有限责任公司,北京101300

收稿日期:2018-05-11 出版日期:2019-01-28 发布日期:2019-01-28
通讯作者: 黎增山(1983-),男,博士,主要研究方向为复合材料结构设计、复合材料力学,09512@buaa.edu.cn。
作者简介:董炜(1995-),男,硕士研究生,主要研究方向为复合材料结构设计。
基金资助:
航空科学基金(2015ZA51010)

EFFECTS OF TITANIUM SURFACE TREATMENT ON ADHESIVE PROPERTY OF TITANIUM-COMPOSITE JOINTS

DONG Wei¹, LI Zeng-shan^1*, CUI Hai-chao²

1.School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China;
2.AVIC Composite Corporation Ltd., Beijing 101300, China

Received:2018-05-11 Online:2019-01-28 Published:2019-01-28

摘要/Abstract

摘要： 纤维增强钛合金层板(TiGr)是纤维金属层板中综合性能最优异的层板之一,被广泛应用于航空结构中。TiGr层板中钛板与复合材料的粘接性能会影响TiGr层板的刚度和失效模式,而钛板与复合材料的粘接性能受工艺影响较大。采用浮辊剥离试验和极差分析方法,研究了钛板表面处理工艺对钛板与复合材料粘接性能的影响。试验表明进行两次等离子体处理工艺的钛板与复合材料粘接件的剥离强度最高,为6.914 kN/m,而进行两次等离子体处理和树脂防护的钛板与复合材料粘接件的剥离强度最低,为2.139 kN/m。在剥离过程中,钛板与复合材料粘接界面存在三种破坏模式:钛板与胶膜的粘附破坏、胶膜的内聚破坏、胶膜与复合材料的粘附破坏,发生胶膜的内聚破坏时,钛板与复合材料的粘接性能最好。钛板表面进行树脂防护,钛板与复合材料的粘接性能降低。钛板表面进行等离子体处理之前进行喷砂处理,获得的钛板与复合材料的粘接性能弱于仅进行等离子体处理获得的钛板与复合材料的粘接性能。

关键词: 表面处理, 钛合金, 复合材料, 剥离, 粘接性能

Abstract: The Titanium/Graphite Hybrid Laminates (TiGr) have been widely used in aeronautical structures for their excellent performance. The adhesive properties of the titanium plate and the composite in the TiGr laminates will affect the stiffness and failure modes of the TiGr laminates. However, the adhesive property of the titanium plate and the composite are greatly influenced by the processing technology. In this paper, adhesive property of titanium-composite joints with different surface treatments on titanium surface was investigated based on floating roll peeling methods and range analysis. The peeling results show that the titanium-composite joints with twice plasma treatment have the highest peeling resistance of 6.914 kN/m, but the titanium-composite joints with twice plasma treatment and resin protection have the the lowest peeling resistance, which is 2.139 kN/m. Three failure patterns of the adhesive interface between titanium and composite happen during the peeling process. That is the adhesion failure between the titanium plate and the adhesive film, the cohesion failure of the adhesive film, and the adhesion failure between the adhesive film and the composite. The peel resistance reaches the highest when the cohesion failure of the adhesive film occurs. According to the experimental results, the adhesive property is weakened with the resin protection applied on the titanium surface. In addition, the grit blasting prior to the plasma treatment weakens the adhesive property, as compared to the property with no grit blasting prior to plasma treatment.

Key words: surface treatment, titanium and alloys, composite, peel, adhesive property

中图分类号:

TB332

董炜, 黎增山, 崔海超. 钛板表面处理工艺对钛板与复合材料粘接性能影响[J]. 玻璃钢/复合材料, 2019, 0(1): 28-35.

DONG Wei, LI Zeng-shan, CUI Hai-chao. EFFECTS OF TITANIUM SURFACE TREATMENT ON ADHESIVE PROPERTY OF TITANIUM-COMPOSITE JOINTS[J]. Fiber Reinforced Plastics/Composites, 2019, 0(1): 28-35.

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