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首页> 外文会议>Materials Science Technology Conference and Exhibition >BRAZING OF NICKEL SUPERALLOYS USING HIGH ENTROPY ALLOY BULK MATERIAL AND NANOPASTE
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BRAZING OF NICKEL SUPERALLOYS USING HIGH ENTROPY ALLOY BULK MATERIAL AND NANOPASTE

机译：使用高熵合金散装材料和纳米锉的镍高温合金钎焊

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Inconel 718 is a popular precipitation-hardened, corrosion-resistant nickel superalloy that is widely used in aerospace turbines, liquid fueled rockets, and other high temperature applications. To better match the high temperature stability of Inconel 718, a MnCoCrNiFe high entropy alloy (HEA) bulk material and nanoparticle paste (nanopaste) were developed. Two brazing techniques were investigated for this brazing material: laser brazing and vacuum brazing. Laser brazing produces a small heat affected zone and very short brazing time. For vacuum brazing, transient liquid phase bonding is employed for brazing Inconel 718 to exploit a lower processing temperature by heating above the solidus line of HEA in conjunction with the size-dependent melting point depression behavior of nanoparticles. The mechanical properties and microstructural evolution of the brazed joints were determined to build a fundamental understanding of HEA brazing filler metals and the difference in behavior of the bulk brazing filler metals and the brazing nanopaste.
机译：Inconel 718是一种流行的沉淀硬化，耐腐蚀的镍高温合金，广泛用于航空航天涡轮机，液体燃料火箭和其他高温应用。为了更好地匹配Inconel 718的高温稳定性，开发了一种Mncocrifrife高熵合金（HEA）散装材料和纳米粒子糊（纳米粒子）。研究了这两种钎焊技术，用于这种钎焊材料：激光钎焊和真空钎焊。激光钎焊产生小型热影响区域和非常短的钎焊时间。对于真空钎焊，使用瞬态液相键合用于钎焊的Inconel 718，通过在Hea的固定线上与纳米颗粒的尺寸依赖性熔点抑制行为一起加热来利用较低的加工温度。确定钎焊关节的机械性能和微观结构演化，为Hea钎料填充金属和散装填料金属和钎焊纳米物的行为差异构建了对钎料的基本认识。

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