论文部分内容阅读
采用电弧离子镀技术在铸造镍基合金 K17和 Ni3Al基合金 IC-6上沉积 Ni-Cr-Al-Y涂层结果表明,在沉积过程中由于电弧离子镀的“溅射”和“反溅射”效应以及基体和涂层发生互扩散的共同作用下,沉积的 Ni-Cr-Al-Y涂层在靠近基体区含有少量基体元素,如 Co, Ti和 Mo等 K17合金中的 Al元素可抑制 Cr由涂层向基体扩散 IC-6合金中由于还含有 Mo元素,使这种抑制作用进一步增强在 1050 ℃真空热处理时,各元素互扩散能力增强,大量的 Cr克服 Al和 Mo元素的束缚向基体扩散,最终使两种合金上沉积的Ni-Cr-Al-Y涂层中的元素均匀分布。
The results of arc-ion plating on the Ni-Cr-Al-Y coatings on the cast Ni-based alloy K17 and the Ni3Al-based alloy IC-6 show that during the deposition process, the “sputter” and “ ”Effect and the mutual diffusion of the substrate and the coating, the deposited Ni-Cr-Al-Y coating contains a small amount of matrix elements close to the matrix region. Al elements in the K17 alloy such as Co, Ti and Mo can be suppressed Cr is diffused from the coating to the substrate. This inhibition is further enhanced by the addition of Mo in the IC-6 alloy. At 1050 ° C, the interdiffusion ability of each element is enhanced and a large amount of Cr overcomes the binding of Al and Mo elements The matrix diffuses and eventually distributes the elements in the Ni-Cr-Al-Y coating deposited on both alloys.