电镀镍钨合金防砂筛管应用于深水油气藏的可行性研究

Electroplating & Finishing(2021)

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Abstract
以防砂筛管的基管材质N80钢为基体电镀镍钨合金.分析了镍钨合金镀层的微观形貌、化学成分、耐砂粒磨损性能、抗硫化氢应力腐蚀开裂性能以及高温高压腐蚀性能.结果表明,镍钨合金镀层平整、致密,厚度及元素分布均匀,具有优异的耐砂粒磨损性能和抗硫化氢应力腐蚀开裂性能,且在典型深水油气藏工况条件下,其表面形成了一层致密的钝化膜,腐蚀速率远低于N80钢基材,属于轻度腐蚀.
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