高温合金净化技术研究方法和发展方向  

Development and Research Method of Superalloy with Clean Technology

作　　者：高杨[1] 牛永吉[1] 史世凤[1] 王超[1] 田建军[1] 张志伟[1] 安宁[1] 

机构地区：[1]北京北冶功能材料有限公司,北京100192

出　　处：《金属材料研究》2016年第1期34-36,共3页Research on Metallic Materials

摘　　要：随着精铸技术的改进、叶片结构设计的进步等使得发动机涡轮叶片工作温度的不断提高，其中一个重要因素就是合金纯净度的不断提高。非金属夹杂物的存在可降低高温合金的疲劳性能和韧性，从而影响其使用性能。因此，合金的纯净度是高温母合金制造水平的重要标志之一。本文总结了提高高温合金纯净度的几种常用的物理和化学方法。分别介绍和对比了其方法的优点和不足，提出了净化技术的发展方向，为提高高温母合金锭的纯净度提供新的技术途径。Refine casting technology and vane structural design is improving, which lead to the inceasing of engine turbine blades working temperature. One of the most important is advance in alloy purity. As non-metallic inclusions make high temperature alloy fatigue performance reduced, the purity of alloy has become the key standard for superalloy manufacture. Some kinds of common physical or chemical methods have been summerized in this paper and some of advantage and disadvantage has been compared, which provides the orientation for purity technology.

关 键 词：高温合金 纯净度 净化技术 

分 类 号：TG132.32[一般工业技术—材料科学与工程]