WC和Mo2C的添加对Ti(C,N)基金属陶瓷高温显微硬度的影响
Effect of WC and Mo2C Addition on Microhardness of Ti(C,N)-Based Cermets at High Temperature
摘 要
基于WC与Mo2C对Ti （C，N）基金属陶瓷的组织优化和润湿性改善等方面具有相似的作用，研究了WC和Mo2C的添加对Ti （C，N）基金属陶瓷在高温下显微硬度的影响。结果表明：随着温度的升高，添加WC和Mo2C后金属陶瓷的高温显微硬度均呈下降趋势，在600~800℃范围内，添加WC后金属陶瓷的高温显微硬度略高于添加Mo2C金属陶瓷的，当温度达到900℃时，两者的显微硬度几乎相同；随着温度的升高，两种金属陶瓷的压痕面积、平均压痕深度均逐渐增加；添加WC后金属陶瓷的高温真应变明显小于添加Mo2C金属陶瓷的，但当温度达到900℃时，两种金属陶瓷的高温变形量接近。
WC
Mo2C
高温
显微硬度
Ti(C,N)-based cermets
WC
Mo2C
high temperature
microhardness
Abstract
Based on the similar effect of WC and Mo2C addition on microstructure optimizing and wettability improvement of Ti(C,N)-based cermets, the microhardness of Ti(C,N)-based cermets with WC or Mo2C addition was investigated at high temperature. The results show that the high-temperature microhardness of Ti(C,N)-based cermets with WC and Mo2C addition both decreased with the increase of temperature. At 600-800℃, the high-temperature microhardness of cermets containing WC was slightly higher than that of cermets with Mo2C and microhardness was almost the same at 900℃. The indentation area and average indentation depth of two cermets both increased with increase of temperature. The true strain of cermets with WC was significantly less than that of cermets with Mo2C addition, but high-temperature deformations of two cermets were nearly close at 900℃.
中图分类号 TG71 DOI 10.11973/jxgccl201707005
所属栏目 试验研究
基金项目 国家自然科学基金面上资助项目（51575368）；四川省科技计划项目（2015GZ0051）
收稿日期 2016/8/9
修改稿日期 2017/5/18
网络出版日期
作者单位点击查看
备注吴悦梅(1982-),女,四川成都人,讲师,博士
引用该论文: WU Yuemei,ZHOU Liming,XIONG Ji,YE Junliu,WEN Bin. Effect of WC and Mo2C Addition on Microhardness of Ti(C,N)-Based Cermets at High Temperature[J]. Materials for mechancial engineering, 2017, 41(7): 24～28
吴悦梅,周黎明,熊计,叶俊镠,文斌. WC和Mo2C的添加对Ti(C,N)基金属陶瓷高温显微硬度的影响[J]. 机械工程材料, 2017, 41(7): 24～28
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参考文献
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【2】赵亮培. 高速切削加工中刀具材料的合理选择[J]. 组合机床与自动化加工技术, 2009, 51(4):67-69.
【3】BELLOSI A, CALZAVARINI R, FAGA M G, et al. Characterization and application of titanium carbonitride-based cutting tools[J]. Journal of Materials Processing Technology. 2003, 143(1):527-532.
【4】铃木寿,林宏尔,松原秀彰. Ti(C,N)-Mo2C-Ni合金の烧結体表面部における組織変化[J]. 粉体およぴ粉末冶金,1982,29(2):58-61.
【5】张幸红,赫晓东,区伟. 燃烧合成TiC-Ni材料的室温及高温力学性能[J].复合材料学报,2001,18(1):71-75.
【6】刘玥. 新型Ti(C,N)基复合金属陶瓷刀具及其高温抗弯强度研究[D]. 济南:山东大学, 2015.
【7】杨志峰,吕维洁,盛险峰,等. 原位合成钛基复合材料的高温力学性能[J]. 机械工程材料, 2004,28(3):22-27.
【8】刘长青.机械制造技术[M].武汉:华中科技大学出版社,2005.
【9】DONG G B, XIONG J, YANG M, et al. Effect of Mo2C on erosion-corrosion resistance behavior of Ti(C,N)-based cermets[J]. Wear, 2012, 294/295(3):364-369.
【10】LIN Z H, XIONG J, GUO Z X, et al. Effect of addition on the microstructure and fracture behavior of (W,Ti)C-based cemented carbides[J]. Ceramic International, 2014, 40:16421-16428.
【11】AHN S Y, KANG S H. Formation of core/rim structures in Ti(C,N)-WC-Ni cermets via a dissolution and reprecipitation process[J]. Journal of American Ceramic Society, 2000, 83(6):1489-1494.
【12】LIU N, CHEN M H, XU Y D, et al. Wettability and bonding between Ni and Ti(C,N) with multiple carbide additions[J]. Journal of Materials Science and Technology, 2005, 21(1):53-59.
【13】刘宁. Ti(C,N)基金属陶瓷材料[M]. 合肥:合肥工业大学出版社,2009.
【14】戴鸿霞,熊惟皓,张国鹏, 等. TaC含量对Ti(C,N)基金属陶瓷抗热震性能的影响[J].机械工程材料,2012,36(12):10-13.
【15】束德林.工程材料力学性能[M].北京:机械工业出版社,2016.
【16】马向平, 王书义, 陈威, 等. 金属陶瓷在高温下的变形规律[J].北京科技大学学报, 2007, 29(2):220-225.
【17】谭孟曦. 利用纳米压痕加载曲线计算硬度-压入深度关系及弹性模量[J]. 金属学报, 2005, 41(10):1020-1024.
【18】BOLOGNINI S, FEUSIER G, MARI D, et al. TiMoCN-based cermets:high-temperature deformation[J]. International Journal of Refractory Metals and Hard Materials, 2003, 21(1/2):19-26.
【19】CHIEN F R, NING X J, HEUER H. Slip systems and dislocation emission from crack tips in single crystal TiC at low temperatures[J]. Acta Materialia, 1996, 44(6):2265-2283.
【20】WILLIAMS W S. Influence of temperature, strain rate, surface condition, and composition on the plasticity of transition-metal carbide crystals[J]. Journal of Applied Physics, 1964, 35(4):1329-1338.
【21】陈景榕, 石沂平. 工具材料的高温硬度[J]. 北京科技大学学报, 1990(5):443-450.
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