Ebara Corporation (hereinafter referred to as "Ebara") has received the 2024 Best Paper Award from the Japan Society of Corrosion Engineering (hereinafter referred to as "Japan Society of Corrosion Engineering").
Awarded the 2024 Paper Award by the Corrosion Prevention Society

1. Background and Objectives
The Japan Society of Corrosion Engineering is the leading organization in Japan that aims to promote and disseminate research and technology related to corrosion protection of all materials. The Paper Award is given to authors of papers that are particularly academically or technically outstanding in the field of corrosion and corrosion protection.
2. Award Overview
Title: 2024 Best Paper Award from the Japan Society of Corrosion Engineering
Award-winning paper: Electrochemical study on stress corrosion cracking of phosphorus-deoxidized copper tubes
Recipients:
① Tomoyoshi Irie, Fundamental Technology Research Department, Technology and Intellectual Property Management Division, Ebara Corporation
② Hiroshi Yakuwa
Two other external parties
Reason for the award:
・Copper is known to undergo stress corrosion cracking (SCC) in ammonia-containing gas phase, and tests to analyze this are often carried out in the gas phase. However, a method was developed to reproduce copper SCC in the liquid phase, where an electrochemical approach is possible. * did
This result demonstrates the possibility of greatly expanding research methods for copper SCC.
For all of the above reasons, the paper received high academic acclaim and was deemed worthy of the Best Paper Award.
The EBARA Group aims to achieve the Sustainable Development Goals (SDGs) and further enhance its corporate value by addressing key ESG issues based on its long-term vision and medium-term management plan.
* An immersion test was conducted using a simple C-ring test piece in a 3M ammonia solution containing 5 g/L of copper (II) as an amine complex. The results showed that after approximately 10 hours, a copper (II) hydroxide film was formed, accompanied by an increase in potential, leading to SCC.