GB/T 40340-2021

Active

Composites and metal assemblies—Galvanic corrosion tests of carbon fibre reinforced plastics (CFRPs) related bonded or fastened structures in artificial atmospheres—Salt spray tests

复合材料与金属组合件 碳纤维增强聚合物基复合材料胶接或紧固件连接结构人工环境下的电偶腐蚀试验 盐雾试验

Standard Type
GBT
ICS
59.100.20
CCS
Q23
Status
Active
Issue Date
2021-08-20
Implementation
2022-03-01
Centralized Committee
国家标准委
Issuing Authority
国家市场监督管理总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies a salt spray test method for evaluating galvanic corrosion between carbon fibre reinforced plastics (CFRPs) and metals in bonded or fastened assemblies. It is applied in the aerospace, automotive, and marine industries to assess corrosion risks in composite-to-metal joints exposed to saline atmospheres. The test helps engineers validate material compatibility and predict long-term structural integrity under corrosive environmental conditions.

Related Standards

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.