Thermal Spray Coating for Corrosion under Insulation (CUI) Prevention

被引:2
|
作者
Fuad, Mohd Fazril Irfan Ahmad [1 ]
Razak, Khalil Abdul [1 ]
Alias, Nur Hashimah [1 ]
Othman, Nur Hidayati [1 ]
Ab Lah, Nik Khairul Irfan Nik [1 ]
机构
[1] Univ Teknol MARA, Fac Chem Engn, Shah Alam 40450, Selangor, Malaysia
来源
ADVANCED MATERIALS FOR SUSTAINABILITY AND GROWTH | 2017年 / 1901卷
关键词
D O I
10.1063/1.5010558
中图分类号
O59 [应用物理学];
学科分类号
摘要
Corrosion under insulation (CUI) is one of the predominant issues affecting process of Oil and Gas and Petrochemical industries. CUI refers to external corrosion, but it is difficult to be detected as the insulation cover masks the corrosion problem. One of the options to prevent CUI is by utilizing the protective coating systems. Thermal spray coating (TSC) is an advanced coating system and it shows promising performance in harsh environment, which could be used to prevent CUI. However, the application of TSC is not attractive due to the high initial cost. This work evaluates the potential of TSC based on corrosion performance using linear polarization resistance (LPR) method and salt spray test (SST). Prior to the evaluation, the mechanical performance of TSC was first investigated using adhesion test and bend test. Microstructure characterization of the coating was investigated using Scanning Electron Microscope (SEM). The LPR test results showed that low corrosion rate of 0.05 mm/years was obtained for TSC in compared to the bare steel especially at high temperature of 80 degrees C, where usually normal coating would fail. For the salt spray test, there was no sign of corrosion products especially at the center (fully coated region) was observed. From SEM images, no corrosion defects were observed after 336 hours of continuous exposure to salt fog test. This indicates that TSC protected the steel satisfactorily by acting as a barrier from a corrosive environment. In conclusion, TSC can be a possible solution to minimize the CUI in a long term. Further research should be done on corrosion performance and life cycle cost by comparing TSC with other conventional coating technology.
引用
收藏
页数:6
相关论文
共 50 条
  • [31] Corrosion Under Insulation
    De Vogelaere, Frank
    PROCESS SAFETY PROGRESS, 2009, 28 (01) : 30 - 35
  • [32] Corrosion under insulation
    不详
    MATERIALS PERFORMANCE, 2004, 43 (03) : 10 - +
  • [33] Corrosion under insulation
    不详
    MATERIALS PERFORMANCE, 2005, 44 (07) : 9 - 10
  • [34] Corrosion under insulation
    不详
    MATERIALS PERFORMANCE, 2004, 43 (06) : 48 - 49
  • [36] CORROSION CHARACTERISTICS OF SEVERAL THERMAL SPRAY CERMET-COATING ALLOY SYSTEMS
    ASHARY, AA
    TUCKER, RC
    SURFACE & COATINGS TECHNOLOGY, 1991, 49 (1-3): : 78 - 82
  • [37] Spray Manufacturing Thermal Insulation Composites
    Zhu, Long
    Meng, Taotao
    Armstrong, Jason N.
    Zhang, Jun
    Ren, Shenqiang
    ACS APPLIED ENGINEERING MATERIALS, 2025, 3 (01): : 266 - 274
  • [38] Effect of aluminium thermal spray coating on the corrosion resistance of a steel under oxidant atmosphere in a fluid catalytic cracking regenerator
    Caminha, I
    Zeng, C
    Piza, M
    Monteiro, M
    Lopes, M
    Rizzo, F
    HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 5, PTS 1 AND 2, 2001, 369-3 : 655 - 661
  • [39] EXTERNAL STRESS CORROSION CRACKING OF STAINLESS STEEL UNDER THERMAL INSULATION
    ASHBAUGH, WG
    MATERIALS PROTECTION, 1965, 4 (05): : 18 - &
  • [40] Corrosion Resistance of Steel Pipelines under Various Thermal Insulation Materials
    Zemlyanko, A. S.
    Semenov, V. S.
    Zhukov, A. D.
    Shuvalova, E. A.
    PROBLEMELE ENERGETICII REGIONALE, 2021, (02): : 90 - 100