Combined Effect Of Chloride And pH On Corrosion Resistance Of Cu-10Ni Alloy

被引：0
|
作者：
Khan, A. F. [1 ]
Patil, A. P. [1 ]
机构：
[1] Visvesvaraya Natl Inst Technol, Dept Met & Mat Engn, Nagpur 440010, Maharashtra, India
来源：
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS | 2008年 / 61卷 / 2-3期
关键词：
Corrosion Resistance; Saturated Calomel Electrode; Oxygen Reduction Reaction; Anodic Polarization; Cathodic Reaction;
D O I：
10.1007/s12666-008-0011-8
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Cu-10Ni alloy is a standard heat exchanger material for saltwater (including seawater) applications owing to its excellent thermal conductivity and corrosion resistance. The excellent corrosion resistance is due to formation of Cu2O film, which accords protection. However, when varying amount of H+, OH- and Cl- ions are present, CuCl2- may also form. The CuCl2 is not protective as Cu2O and hence corrosion resistance may be affected. Present paper investigates combined effect of chloride ion and pH on corrosion resistance of Cu-10Ni alloy. Cathodic and anodic polarization test results are presented for saltwater containing various amounts of NaCl at pH 6 and 8. It is found that, i(corr) increases with increasing chloride concentration. The results are discussed using dissolution mechanisms, semi-conducting behaviour of Cu2O film and deterioration of the film in presence of chloride ions.
引用
收藏
页码：225 / 229
页数：5
相关论文
共 50 条
  • [1] Combined effect of chloride and pH on corrosion resistance of Cu-10Ni alloy
    A. F. Khan
    A. P. Patil
    [J]. Transactions of the Indian Institute of Metals, 2008, 61 : 225 - 229
  • [2] Effect of Zn addition on corrosion resistance of Cu-10Ni alloy in clean and sulphide contaminated seawater
    Tandon, Vipin
    Patil, Awanikumar P.
    Bansod, Ankur
    [J]. CANADIAN METALLURGICAL QUARTERLY, 2018, 57 (02) : 194 - 200
  • [3] Corrosion Resistance of a New Cu-Alloy (Low Ni) vis-a-vis Cu-10Ni Alloy in Sulfide Polluted Synthetic Seawater
    Khan, Adeeba F.
    Patil, Awanikumar P.
    Rao, T. Subba
    [J]. ADVANCES IN MATERIALS AND PROCESSING: CHALLENGES AND OPPORTUNITIES, 2012, 585 : 488 - +
  • [4] Effect of 2-mercaptobenzothiazole on the corrosion inhibition of Cu-10Ni alloy in 3 wt% NaCl solution
    Zarebidaki, Arman
    Mofidi, Seyed Haman Hedaiat
    Bahri, Farzaneh Iranmanesh
    [J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 2022, 52 (12) : 1773 - 1788
  • [5] Enhanced corrosion resistance of a Cu-10Ni alloy in a 3.5 wt% NaCl solution by means of ultrasonic surface rolling treatment
    Xia, Tingting
    Zeng, Longfei
    Zhang, Xuehui
    Liu, Jiang
    Zhang, Wenlong
    Liang, Tongxiang
    Yang, Bin
    [J]. SURFACE & COATINGS TECHNOLOGY, 2019, 363 : 390 - 399
  • [6] CONTRIBUTION OF ENVIRONMENT TO TORSIONAL FATIGUE BEHAVIOR OF CU-10NI ALLOY
    SUDARSHAN, TS
    LOUTHAN, MR
    MABIE, HH
    [J]. MATERIALS SCIENCE AND TECHNOLOGY, 1987, 3 (05) : 338 - 344
  • [7] A Comprehensive Investigation of Corrosion Efficiency of Cu-10Ni Alloy in Hybrid Cr3+/ 3+ / Ni2+with 2+ with Tungstate in Chloride Media
    Gaber, Ghalia A.
    Abdelfatahb, Aliaa
    Mohamed, Lamiaa Z.
    [J]. EGYPTIAN JOURNAL OF CHEMISTRY, 2024, 67 (07): : 201 - 219
  • [8] Evaluation of corrosion behavior of Cu-10Ni alloy in 3 wt% NaCl solution through EIS and ENM methods
    Zarebidaki, Arman
    Mofidi, Seyed Haman Hedaiat
    Bahri, Farzaneh Iranmanesh
    [J]. MRS ADVANCES, 2022, 7 (31) : 882 - 885
  • [9] Evaluation of corrosion behavior of Cu-10Ni alloy in 3 wt% NaCl solution through EIS and ENM methods
    Arman Zarebidaki
    Seyed Haman Hedaiat Mofidi
    Farzaneh Iranmanesh Bahri
    [J]. MRS Advances, 2022, 7 : 882 - 885
  • [10] AN XPS STUDY OF THE CORROSION OF CU-10NI ALLOY IN UNPOLLUTED AND POLLUTED SEA-WATER - THE EFFECT OF FESO4 ADDITION - REPLY
    CHAUHAN, PK
    GADIYAR, HS
    [J]. CORROSION SCIENCE, 1985, 25 (12) : 1194 - 1195
12345