Analysis of Corrosion Inhibitors for Aircrafts
Received:January 16, 2015  Revised:June 15, 2015
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DOI:10.7643/issn.1672-9242.2015.03.017
KeyWord:corrosion inhibitor  30CrMnSiA stainless steel  construction performance  corrosion protection performance
     
AuthorInstitution
SHI Zhi-xiang China Special Vehicle Research Institute, Jingmen , China
HE Wei-ping China Special Vehicle Research Institute, Jingmen , China
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Abstract:
      Objective To delay or inhibit corrosion of aircraft structure. Methods Totally five different kinds of corrosion inhibitors (TFHS-15, LPS03316, AV15, Cor-Ban 35, Corrosion X Aviation, WD 40) were selected which had been used for aircraft maintenance. And the GM9540P accelerated corrosion test was adopted to evaluate the corrosion inhibitors. The GM9540P provided a combination of cyclic conditions including salt solution, damp-heat, and dry environment. Results The surfaces of test pieces of TFHS-15 showed no bubbles, spalling or discoloration. The surfaces of test pieces of Cor-Ban 35 showed no bubbles or spalling, but slight discoloration appeared. These results indicated that the protection grade of TFHS-15 and Cor-Ban 35 was Grade 10. The surfaces of test pieces of Corrosion X Aviation had a slight spalling, indicating the protection grade was Grade 9. The surfaces of test pieces of LPS03316 had a trace spalling and a slight discoloration, indicating the protection grade was Grade 8. The surfaces of test pieces of WD40 had massive spalling and discoloration, indicating the protection grade was Grade 1. Conclusion The accelerated corrosion test for comparison of test pieces showed that the two different kinds of corrosion inhibitors (TFHS-15 and Cor-Ban 35) were effective means in the military aircraft maintenance to prevent corrosion and worthy of popularization and application.
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