High-throughput technique for stress corrosion cracking susceptibility measurements based on film-induced stress. (September 2022)

• Record Type: Journal Article
• Authors: Song, Youpeng; Yan, Luchun; Pang, Xiaolu; Su, Yanjing; Qiao, Lijie; Gao, Kewei
• Is Part Of: Vacuum. Volume 203(2022)
• Publication Date: 2022-09
• Subjects: High-throughput -- Multicomponent alloys -- Stress corrosion cracking -- Film-induced stress; Vacuum -- Periodicals; 621.55
• DOI: 10.1016/j.vacuum.2022.111275
• Languages: English
• ISSNs: 0042-207X

Abstract

Abstract: The measurement of stress corrosion cracking (SCC) susceptibility of metallic materials with a wide composition range is a daunting task. In this work, based on the consistent relationship between corrosion product film induced stress and SCC susceptibility, we present a high-throughput strategy to quickly evaluate the SCC susceptibility of metallic materials via in-situ stress measurements utilizing highly sensitive microcantilever arrays, combinatorial deposition and scanning laser beam. Using this approach, we fabricated composition gradient Cu–Zn alloy thin films onto the microcantilever arrays, and quickly established a relationship between the alloy compositions and SCC susceptibility within a broad composition range. Highlights: An approach to rapidly evaluate the SCC susceptibility of metallic materials is presented. The composition gradient Cu–Zn alloy thin films were deposited onto the microcantilever arrays. The deflection of the cantilevers was monitored in-situ using a scanning laser beam. The effect of Zn content on SCC susceptibility was determined through a changing trend of deflection.