硅酸盐学报2020，Vol.48Issue(12)：1906-1913,8.DOI:10.14062/j.issn.0454-5648.20200333
成型压力对微波烧结的复杂Ti(C,N)基金属陶瓷刀具力学性能和显微结构的影响
Effects of Molding Pressure on Mechanical Properties and Microstructure of Microwave Sintered Complex-shaped Ti(C, N) Cermet Tool
摘要
Abstract
A complex-shaped titanium carbonitride (Ti(C, N))-based cermet tool was prepared by microwave sintering. The effects of molding pressure on density distribution and residual stress of green compact, relative density, mechanical properties, and microstructure of the sintered compact tool were studied. The results indicated that a high-performance complex-shaped ceramic tool can be prepared using the combined technology of molding and microwave sintering. The density of the cutting edge was lower than that of the body of the tool. The difference increased first and then decreased with the increase in molding pressure. When the molding pressure was lower than 200 MPa, minimal differences between rake and flank faces with respect to relative density and mechanical properties were noted, while the relative density and mechanical properties of rake face were higher than that of flank face when the molding pressure was higher than 300 MPa. However, excessive molding pressure resulted in cracks within the tool. The optimal molding pressure for preparation of a Ti(C, N)-based cermet tool with three-dimensional breaker was 400 MPa.关键词
微波烧结/碳氮化钛陶瓷/压制压力/显微结构/力学性能Key words
microwave sintering/titanium carbonitride ceramic/molding pressure/microstructure/mechanical property分类
通用工业技术引用本文复制引用
殷增斌,叶佳冬,朱智勇,洪东波..成型压力对微波烧结的复杂Ti(C,N)基金属陶瓷刀具力学性能和显微结构的影响[J].硅酸盐学报,2020,48(12):1906-1913,8.基金项目
国家自然科学基金(51875291) （51875291）
江苏省优秀青年基金(BK20190070) （BK20190070）
江苏省"六大人才高峰"高层次人才计划(GDZB-016)和中央高校基本科研业务费专项资金(30920032206)资助. （GDZB-016）
