Wear Characteristics of Zirconia Toughened Ceramic Drawing Dies

作     者：Zhigang CHEN (Ceramic Research Lab., Jiangsu University of Science and Technology, 212013, Zhenjiang, China) 

作者机构：Ceramic Research Lab Jiangsu Univ of Science and Technology Nanjing China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：1995年第11卷第5期

页      面：380-384页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

主　　题：WC Wear Characteristics of Zirconia Toughened Ceramic Drawing Dies 

摘      要：Wear resistance of several zirconia toughened ceramics in comparison with a metal-ceramic Co-WC has been studied in drawing wire field test. Result indicates that the harder the ceramic die, the longer the service life. Excellent wear resistance of ceramic die is obtained with a very high hardness (19 GPa). The service life is nearly three times that of Co-WC die. SEM observation on wear surfaces showed that material removal is mainly caused by plastic flow and ploughing process. But when the ceramic is composed of zirconia, alumina and some titanium carbide, micro-chipping and tribochemical reaction take place, and wear rate increases. Wear and friction induced martensite was detected by XRD. The T-M (tetragonal to monoclinic) phase transformation has a contribution to inhibiting microfracture.