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Tribological behavior of austenitic stainless steels for in-core flux thimble system in a pure water environment
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DOI：10.1007/s42243-026-01886-1.png)
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Abstract
En 中文
The sliding friction and wear behavior of cold-rolled austenitic stainless steel paired with two austenitic stainless steels of similar chemical composition is investigated. The results indicate that under low loads, Z5CND17-12 steel (cold-rolled austenitic stainless steel) exhibits strong resistance to abrasive wear due to the strengthening and hardening effects induced by work hardening. The wear mechanisms are primarily abrasive wear and brittle spalling of the hardened surface layer. As the load increases, pronounced plastic deformation and delamination occur on the worn surface, accompanied by intensified adhesive wear. The X-ray diffraction (XRD) analysis confirms that no martensitic phase transformation takes place during sliding. XRD calculation results indicate that increasing the applied load leads to an increase in dislocation density and lattice strain, accompanied by a reduction in grain size. Microcracks are observed in the subsurface region, especially under high-load conditions, indicating inferior resistance to fatigue wear when subjected to high cyclic stresses.
Keywords:
Austenitic stainless steel
Cold rolling
Friction wear behavior
Load
Deformation
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