锆合金的处理方法及应用

• Format: Patent
• Language: Chinese
• Published: 04.03.2022
• Subjects: ALLOYS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FERROUS OR NON-FERROUS ALLOYS; HUMAN NECESSITIES; HYGIENE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TREATMENT OF ALLOYS OR NON-FERROUS METALS

本发明属于医用植入物材料技术领域，具体涉及一种降低锆合金表面氧化陶瓷层中铪元素含量的方法及应用。所述方法包括对锆合金表层进行若干次氧化和去除表层的循环工艺处理，直至氧化陶瓷层中铪元素含量为0.3wt％-6wt％，所述氧化和去除表层的循环工艺包括：对表层进行氧化处理，然后去除氧化物表层，露出新的表层。本发明提供的技术方案能够降低高铪含量锆合金表面氧化陶瓷层的铪氧化物含量，从而解决了高铪含量锆合金的表面氧化陶瓷层中的微裂纹的问题，提高了氧化陶瓷层耐磨性、硬度和抗损伤性能，另外，相较于直接使用价格高昂的低铪含量锆合金为原材料，在性能相当的情况下，大幅降低了原材料成本，具有更强的市场竞争优势。 A treatment method for zirconium alloy, comprising performing a surface layer oxidation and removal treatment on a surface layer of zirconium alloy. The surface layer oxidation and removal treatment comprises: performing an oxidation treatment on the surface layer of the zirconium alloy to obtain an oxide surface layer (41), and then removing the oxide surface layer (41) to expose a metal substrate (30). The present application also comprises a method for fabricating a surface oxide ceramic layer (10) of zirconium alloy and a material for a medical implant.