name

Research Project

Developing Quantitative Corrosion Methods Adapted to Compact Tension Specimens for Standardized Crack Growth Tests
Corrosion is one of the most destructive phenomena not only on the environment, but also on our safety. Not only does the microstructure influence the severity of corrosion, but also does many other chemical and mechanical factors such as fatigue. Most of the research in this field studies fatigue and corrosion separately, while in fact they work synergistically damaging and reducing the runners’ service life. For this reason, the ability to evaluate and further predict localized corrosion on materials subjected to stress has been a growing interest to foresee the fatigue-corrosion crack before escalating into a material failure, years later.  
 Based on this, my project is a one that aims at conducting quantitative and qualitative investigations to assess the effect of the heterogeneous microstructure on the fatigue and corrosion resistance of two of the stainless-steel samples: (1) the precipitation-hardened martensitic stainless steel, AMPO M789, employed in heavy machinery applications and (2) the CA6NM sample which is used to manufacture the hydraulic turbines of Hydro Quebec. To account for the combined synergistic effect of localized corrosion, mainly pitting, and fatigue, the chemical composition and electrochemical reactivity of both samples will be mapped at the microscale under mechanical stress to replicate fatigue. The microscale electrochemical measurements will be conducted using the direct high-resolution microscale technique: scanning micropipette contact method (SMCM).

Email:  sarah.yassine@mail.mcgill.ca
Phone: 514-398-6545
Office: PP-308

Current Position: Ph.D. Student

Education

Ph.D., Chemistry, McGill University, Canada, Sept.2019 – Present

MSc., Chemistry, American University of Beirut, Lebanon, Sept.2017 – June.2019
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BSc., Chemistry, American University of Beirut, Lebanon, Sept.2014 – June.2017

Publications

Laliberté-Riverin, S.; Yassine, S.; Mena-Morcillo, E.; Sanni, K.; Cova, M.; Hassanipour, M.; Provencher, P.; Mauzeroll, J.; Brochu, M. Microstructure, corrosion behavior, and fatigue resistance of laser powder bed fusion-produced precipitation-hardening martensitic M789 stainless steel. Surfaces and Interfaces. 2024. 45, 103830

Yassine, S.R., S.A. Hassoun, and P. Karam, Fluorescent thermal sensing using conjugated polyelectrolytes in thin polymer films. Analytica Chimica Acta, 2019.

Honors/Awards

 

CONFERENCES/presentations

Oral:
Yassine, S.; Laliberté-Riverin, S.; Mena-Morcillo, E.; Cova, M.; Brochu, M.; Mauzeroll, J. Effect of the Microstructure on the Corrosion and Fatigue Behavior of the Additively Manufactured M789 Stainless Steel. ECS 241 2022, Vancouver, June 1

Poster:
Yassine S., Mauzeroll, J. Effect of the Microstructure on the Corrosion and Fatigue Behavior of the Additively Manufactured M789 Stainless Steel. CSC CCCE, 2022, Calgary, June 15