Scholarlink

<p>Candidate Fe- and Ni-alloys for next generation molten salt reactors (MSRs) often corrode by the selective dissolution of less noble alloying elements (Cr, Fe) when exposed to molten salt mixtures, which is due to impurities, notably moisture and oxygen. Materials used in current nuclear reactors, as well as those in consideration for MSRs, often require corrosion control strategies, such as surface modification. This study determines the viability of two surface modification combinations to control corrosion in molten Cl salt mixtures: (1) physical vapor deposited (PVD) Ni coating on Type 304L stainless steel and (2) pre-oxidized Al<sub>2</sub>O<sub>3</sub> coating on Alloy 214. Bulk immersion coupled with post-immersion surface characterization by electron microscopy was used for this purpose. Both coatings show promise in controlling (reducing) corrosion (Cr dealloying) in each case. However, coatings are prone to defect formation, which compromise corrosion protection and, thus, requires further research and development.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Towards Controlling Corrosion of Structural Alloys for Molten Salt Reactors with Surface Modifications

  • 期刊论文

  • 发表日期：

    2026年1月9日

查看全文
  • Z. A. Khan,
  • M. Mendes,
  • K. Daub,
  • S. Y. Persaud,
  • J. R. Kish

摘要

Candidate Fe- and Ni-alloys for next generation molten salt reactors (MSRs) often corrode by the selective dissolution of less noble alloying elements (Cr, Fe) when exposed to molten salt mixtures, which is due to impurities, notably moisture and oxygen. Materials used in current nuclear reactors, as well as those in consideration for MSRs, often require corrosion control strategies, such as surface modification. This study determines the viability of two surface modification combinations to control corrosion in molten Cl salt mixtures: (1) physical vapor deposited (PVD) Ni coating on Type 304L stainless steel and (2) pre-oxidized Al2O3 coating on Alloy 214. Bulk immersion coupled with post-immersion surface characterization by electron microscopy was used for this purpose. Both coatings show promise in controlling (reducing) corrosion (Cr dealloying) in each case. However, coatings are prone to defect formation, which compromise corrosion protection and, thus, requires further research and development.