Session: New Developments and Recent Experiences With Nickel, Titanium, Zirconium, and Other High Alloyed Corrosion Resistant Materials
Ni-base corrosion resistant alloys (CRA) performance in high concentrated acidic brine solutions (C2026-00271)
Tuesday, March 17, 2026
8:00 AM - 8:30 AM Central
Location: 371 AB
Earn .5 PDH
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Ling Chen, Ajit Mishra, Javier Guerrero, Vinay Deodeshmukh
High concentrated brine solution is widely used in various industries, such as chlor-alkali cells to produce chlorine, the drilling fluids for Oil & Gas wells as well as in the geothermal industry, agricultural product process, wastewater treatment, preserving foods and deicing applications. Materials selection on preventing pitting and general corrosion as well as stress corrosion cracking (SCC) when exposed to concentrated brine solution is important. In this paper, Ni-Mo (N10675) alloy and Ni-Cr-Mo alloys (N10276, N06022, N10362 and Nn6200) were evaluated in acidic 20%NaCl solutions with low PH (≤1) at temperature range from 110oC to 150oC. The as-welded N10362 alloy has shown excellent corrosion performance in those low PH and high concentrated saline solutions. Mo-rich oxide films were observed on all alloys surface when PH=0. Another study performed in strong oxidizing environment of acidic 5%NaCl solution saturated with wet Cl2 has shown alloy N06200 and N10362 outperformed N10276 alloy. The N06200 and N10362 coupons are in field testing for piping materials of chlorine production.
