Erosion Resistance of Stellite Alloys under Solid-Particle Impact

作     者：Sydney Nsoesie Rong Liu Kuiying Chen Matthew Yao 

作者机构：Department of Mechanical and Aerospace Engineering Carleton University 1125 Colonel By Drive Ottawa Ontario KIS 5B6Canada Institute for Aerospace Research National Research Council of Canada 1200 Montreal Road Ottawa Ontario KIA OR6 Canada Kennametal Stellite Inc. P.O. Box 5300 Belleville Ontario K8N 5C4 Canada 

出 版 物：《材料科学与工程（中英文B版）》 (Journal of Materials Science and Engineering B)

年 卷 期：2013年第3卷第9期

页      面：555-566页

学科分类：080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：司太立合金 固体颗粒 铬钴合金 性能 水蚀 侵蚀试验 撞击速度 金属间化合物 

摘      要：Selected Stellite alloys, which are currently or potentially employed in an environment involving erosion, are studied under solid-particle erosion test. These alloys include high-carbon Co-Cr-W system and low-carbon Co-Cr-Mo system. Two particle impact velocities (84 m/s and 98 m/s) and two impingement angles (30 and 90 ) are used in the test. It is shown that Stellite alloys are more resistant to erosion at 90 impingement angle than at 30 impingement angle and the weight losses of Stellite alloys increase with the particle impact velocity. The erosion resistance of Stellite alloys is controlled mainly by their carbon content, but tungsten and molybdenum contents also play an important role in the erosion resistance of these alloys, because these elements determine the volume fractions of carbides and intermetallic compounds in the alloys. The eroded surfaces are analyzed using SEM to further understand the erosion test results.