STUDY ON GALVANIC CORROSION BEHAVIOR BETWEEN CARBON/EPOXY COMPOSITES AND DIFFERENT METAL MATERIALS

Fiber Reinforced Plastics/Composites ›› 2019, Vol. 0 ›› Issue (9): 52-57.

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STUDY ON GALVANIC CORROSION BEHAVIOR BETWEEN CARBON/EPOXY COMPOSITES AND DIFFERENT METAL MATERIALS

GONG Wen-hua, DU Shu-jing^*, GAO Xiao-jin, JIANG Jian-ying

Aerospace Institute of Advanced Materials & Processing Technology, Beijing 100074, China

Received:2018-12-05 Online:2019-09-28 Published:2019-09-28

Abstract

Abstract: The galvanic corrosion behavior between carbon/epoxy composites and 30CrMnSiA high-strength steel and 1Cr17Ni2 stainless steel were studied in this paper. Scanning electron microscopy (SEM) was used to observe the microscopic corrosion morphology of metal surface under different test conditions. Atomic energy spectrum analysis of 1Cr17Ni2 stainless steel samples were carried out. The results showed that, in direct contact, carbon/epoxy composite with 30CrMnSiA high-strength steel had obvious galvanic corrosion, but with 1Cr17Ni2 stainless steel it had almost no galvanic corrosion. The barrier effect of glass cloth/adhesive film on 30CrMnSiA high-strength steel was very obvious, which could significantly improve the corrosion resistance of 30CrMnSiA steel, but had little impact on 1Cr17Ni2 stainless steel. Carbon/epoxy composite and 30CrMnSiA high strength steel could only be used after protection, and 1Cr17Ni2 stainless steel could be used directly.

Key words: 30CrMnSiA high-strength steel, 1Cr17Ni2 stainless steel, epoxy composite, galvanic corrosion

CLC Number:

TB332

GONG Wen-hua, DU Shu-jing, GAO Xiao-jin, JIANG Jian-ying. STUDY ON GALVANIC CORROSION BEHAVIOR BETWEEN CARBON/EPOXY COMPOSITES AND DIFFERENT METAL MATERIALS[J]. Fiber Reinforced Plastics/Composites, 2019, 0(9): 52-57.

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STUDY ON GALVANIC CORROSION BEHAVIOR BETWEEN CARBON/EPOXY COMPOSITES AND DIFFERENT METAL MATERIALS

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