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The results of investigations of wetting of Al2O3, ZrO2, AlN, VK94-2, and porcelain using various niobium-containing alloys are presented. A method for brazing ceramic materials with niobium by the contact-reactive methods through nickel and also the conditions of joining ceramics with niobium by pressure welding are described. 相似文献
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采用药芯焊丝氩弧堆焊方法在低碳钢表面制备了以Fe-Al为基、添加Cr3C2p的堆焊层.利用Nikon金相分析系统、扫描电镜、X射线衍射仪、显微硬度计和销盘磨损试验机对堆焊层组织结构和性能进行了分析测试.结果表明,药芯焊丝中的Fe粉、Al粉和Cr3C2p粉经过氩弧加热、熔化和冷却结晶后形成了FeAl、Fe3Al、FeCr、Cr7C3相,堆焊层中也存在部分未全部熔化的Cr3C2p.Cr3C2p/Fe-Al堆焊层的耐干摩擦磨损性能和在650 ℃时的抗氧化性能均高于2Cr13型的D517焊条堆焊层. 相似文献