Work

Linearly concentrating solution favors efficient and precise determination of critical pitting chloride concentration

Year: 2024

Type: article

Abstract: The critical pitting chloride concentration (CPCC) is an essential parameter for the safe service of structural alloys that sensitive to pitting corrosion. Precise lacking and time-consuming frustrates the traditional method (multiple tests), i.e., applies various solutions with different concentrations and then gradually approaches the real CPCC. Herein, a novel method (single test) was proposed to efficiently and precisely positioning CPCC, i.e., linearly increasing chloride concentration that realized by a peristaltic pump with a high precision drip rate of μL/min. Moreover, a non-linear sensitivity of CPCC to concentrating rate of chloride ion was revealed on CoCrFeNiAl x alloys and the possible mechanism is discussed.

Source: Electrochemistry Communications

DOI: 10.1016/j.elecom.2024.107859

Authors: Jia-Yi Gao, Yang Bai, Cheng-Ping Ye, Xian-Zong Wang

Institution: Northwestern Polytechnical University

Language: English

Topic: Hydrogen embrittlement and corrosion behaviors in metals

Subfield: Metals and Alloys

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,470

Funders: National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities