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首页> 美国卫生研究院文献>Materials >The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys
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The Effect of Processing Variables on Powder Interlayer Bonding in Nickel-Based Superalloys

机译：工艺变量对镍基高温合金粉末层间结合的影响

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摘要

Powder Interlayer Bonding (PIB) has been considered as a lower-energy joining technology for nickel-based superalloys compared to conventional methods; such as friction welding. Typically; nickel-based superalloys exhibit high energy requirements for joining due to their high operating temperatures. However; PIB utilizes a localized temperature gradient created by an induction current; reducing the energy requirements for the process. PIB is a solid-state joining method that compresses and heats a powder interlayer between two faying surfaces to produce one joined workpiece. It has been successfully used to bond titanium alloys; and the objectives of this work were to explore its application as a joining method for nickel-based superalloys. Initial results showed that joining nickel-based superalloys via PIB is possible; and bondlines with very little porosity were observed. Further analysis showed that these bonded areas had lower porosity than the base material; suggesting PIB could be a successful joining method for difficult-to-join nickel-based superalloys.
机译：与传统方法相比，粉末层间粘结（PIB）被认为是镍基高温合金的一种低能连接技术。例如摩擦焊接。通常；镍基高温合金由于其较高的工作温度而具有很高的连接能量要求。然而; PIB利用感应电流产生的局部温度梯度。降低过程的能源需求。 PIB是一种固态连接方法，该方法压缩并加热两个接合表面之间的粉末夹层，以生产一个连接的工件。它已成功用于粘结钛合金。这项工作的目的是探索其作为镍基高温合金连接方法的应用。初步结果表明，可以通过PIB加入镍基高温合金。观察到具有很少孔隙的粘结线。进一步的分析表明，这些结合区的孔隙率低于基材。提示PIB可能是一种难以连接的镍基高温合金的成功连接方法。

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