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复合氮化合物薄膜的研究
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作者 梁红樱 代燕芹 +1 位作者 但秦 夏长秋 《工具技术》 北大核心 2017年第6期48-51,共4页
采用多源PVD技术在YG8硬质合金基体上分别沉积了Ti N和Ti NX薄膜,利用X射线衍射仪、扫描电子显微镜以及多功能材料表面试验仪,研究了多种元素的添加对Ti N涂层微观结构、断口和表面形貌的影响。结果表明:添加多种元素可使Ti N涂层的微... 采用多源PVD技术在YG8硬质合金基体上分别沉积了Ti N和Ti NX薄膜,利用X射线衍射仪、扫描电子显微镜以及多功能材料表面试验仪,研究了多种元素的添加对Ti N涂层微观结构、断口和表面形貌的影响。结果表明:添加多种元素可使Ti N涂层的微观结构发生明显变化,能有效控制膜的结晶和生长模式,改变传统的(111)面的单一取向,从原来的(111)的择优取向,转变为(200)、(111)、(220)共同取向;Ti NX涂层的断口呈非柱状结构,表面粗糙度小于Ti N,具有更为均匀致密的结晶结构和光整的表面形貌,趋于Ti Al N薄膜的显微硬度,一致的结晶组织结构、有效的沉积效率、良好的膜基结合力有利于厚膜Ti N的制备;相对于Ti N,寿命可提高50%-100%。 展开更多
关键词 多源PVD TIN 复合氮化合物 物相结构
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Analysis of the Mechanical Properties of the Sintered Composite FeCuC in Two Different Atmospheres
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作者 Clayton Andre de Oliveira Motta Jose de Souza +5 位作者 Marcelo Salvador Coser Alex Fabiano Bueno Lirio Schaeffer Bernardo Poras Reis Hamudy Munir Abou Arabi Lucas Soares de Almeida 《Journal of Mechanics Engineering and Automation》 2015年第1期33-38,共6页
This study aimed to analyze the mechanical properties of the compound FeCuC when compacted at varying pressures and sintered in two different types of furnaces. Besides the different models of furnace, the working atm... This study aimed to analyze the mechanical properties of the compound FeCuC when compacted at varying pressures and sintered in two different types of furnaces. Besides the different models of furnace, the working atmospheres were varied: one is being composed with argon gas and another constituted with a balancing nitrogen and hydrogen. Atmospheres vary with the amount of production and the type of equipment used. The compound generated is used in the manufacture of rings for mechanical seals and is currently manufactured by the sintering process in passing furnace. The sintering was performed in a static furnace with argon atmosphere and compared with the same compound sintered in passage furnace with hydrogen and nitrogen atmosphere. The analysis of the properties of the tested material was performed with the aid of metallography using a scanning electron microscope, which verified the particle size distribution, chemical elements and pores present. Brinell hardness and Vickers micro hardness tests were also used to analyze the properties of this material after completion of the two processes. Thus, the research carried out has shown that variations may occur in the mechanical properties when processed in different furnace types and different sintering atmospheres. 展开更多
关键词 Sintering furnaces FeCuC work atmosphere
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