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Process for producing a wear and corrosion resistant casing for a nuclear reactor from a low carbon content stainless steel austenitic blank, corresponding casing and corresponding control cluster
Process for producing a wear and corrosion resistant casing for a nuclear reactor from a low carbon content stainless steel austenitic blank, corresponding casing and corresponding control cluster
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机译:由低碳含量的不锈钢奥氏体坯料,相应的机壳和相应的控制组件生产核反应堆的耐磨和耐腐蚀机壳的方法
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摘要
A method for producing a wear-resistant and corrosion-resistant stainless steel part for a nuclear reactor is provided. This method includes steps of providing a tubular blank in austenitic stainless steel whose carbon content is equal to or lower than 0.03% by weight; shaping the blank; finishing the blank to form the cladding; hardening the outer surface of the cladding by diffusing one or more atomic species; the blank, before the providing step or during the shaping or finishing step, being subjected to at least one hyper quenching with sub-steps of: heating the blank to a sufficient temperature and for a sufficient time to solubilize any precipitates present; quenching the blank at a rate allowing the austenitic structure to be maintained in a metastable state at ambient temperature and free of precipitates.
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