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| 冷加工制备医用铂钨丝材的研究 |
| Preparation of Medical Platinum Tungsten Wire by Cold Working |
| 投稿时间：2018-08-31 |
| DOI： |
| 中文关键词: 金属材料 栓塞弹簧圈 铂钨合金 冷加工 |
| 英文关键词: metal materials embolism coil platinum tungsten alloy cold working |
| 基金项目: |
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| 中文摘要: |
| 铂钨(PtW)合金是一种优良的生物医用材料，铂钨丝材可制成栓塞弹簧圈，用于治疗脑动脉瘤。由于铂钨属难熔合金，且开坯极易开裂。采用非自耗真空电弧熔炼方法制备铂钨合金铸锭，通过小变形量轧制并配以中间热处理，使铸锭发生塑性变形，结合后续的拉制及不同热处理工艺，采用光学显微镜、扫描电镜对微观组织进行观察，并研究铂钨合金丝材在不同热处理条件下的力学性能变化，成功制备出满足生物医用要求的铂钨超细丝材。 |
| 英文摘要: |
| Pt-W alloy is an excellent biomedical material. Pt-W wire can be made into embolic coil, embolic coil can be for the treatment of cerebral aneurysm. Due to the difficulties of smelting and subsequent processing of Pt-W alloy, Pt-W alloy ingot is prepared by vacuum non consumable arc melting. The ingot is plastically deformed by rolling with a small amount of deformation and with an intermediate heat treatment, the microstructure is observed by optical microscope and scanning electron microscope. The mechanical properties of Pt-W alloy wire under different heat treatment conditions are studied, and successfully prepared PtW ultra-fine wire materials that meet biomedical requirements. |
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