TixV1-xCN基金属陶瓷的显微组织与力学性能
Microstructure and Mechanical Properties of TixV1-xCN Based Cermets
摘 要
以偏钒酸铵、钛白粉和石墨为原料, 采用碳热还原法制备了TixV1-xCN预合金化固溶粉体, 然后再添加镍、钼金属粉体, 采用粉末冶金法制备了TixV1-xCN基金属陶瓷, 研究了TixV1-xCN粉体的晶格常数a与x之间的关系, 以及TixV1-xCN基金属陶瓷的物相、组织和力学性能。结果表明: TixV1-xCN固溶粉体的晶格常数a和x呈良好的线性关系; TixV1-xCN基金属陶瓷中的硬质相呈黑芯-灰壳结构; 钼主要以MoC的形式与硬质相核心发生固溶, 剩余的少量钼固溶到粘结相镍中形成Mo0.09Ni0.91; Ti0.8V0.2CN基金属陶瓷的组织比较均匀, 其力学性能最佳, 硬度为1 460 HV, 抗弯强度为873 MPa。
金属陶瓷
显微组织
力学性能
TixV1-xCN
cermet
microstructure
mechanical property
Abstract
Pre-alloyed TixV1-xCN solid-solution powders were synthesized by carbothermic method using ammonium metavanadate, titanium and graphite as raw materials, and then to prepare TixV1-xCN based cerments by adding Ni and Mo powders. The relationship between lattice parameter a and x of TixV1-xCN powders, as well as, phase, microstructure and mechanical properties of TixV1-xCN based cermets were investigated. Results show that parameter a had good relationship with x. The hard phase of TixV1-xCN based cermets had black core-grey shell structure. Large amounts of Mo in the form of MoC was solid dissolved with hard phase core, and Mo0.09Ni0.91 was formed by the solid solution of residual Mo with Ni. The Ti0.8V0.2CN based cermet had uniform microstructure and best mechanical properties, the hardness was 1 460 HV and the blending strength was 873 MPa.
中图分类号 TG148 DOI 10.11973/jxgccl201605005
所属栏目 试验研究
基金项目 四川省应用基础研究项目(2014JY0132); 攀枝花市创新人才培养项目(2015TX-11); 攀枝花市科技支撑项目(2015CY-G-18, 2013CY-G-7, 2014CY-G-26-1)
收稿日期 2015/5/21
修改稿日期 2016/3/2
网络出版日期
作者单位点击查看
备注陈敏(1985-), 女, 山西朔州人, 讲师, 博士。
引用该论文: CHEN Min,XIAO Xuan,REN Jie,TAN Bin,ZHONG Hua-jie. Microstructure and Mechanical Properties of TixV1-xCN Based Cermets[J]. Materials for mechancial engineering, 2016, 40(5): 31～34
陈敏,肖玄,任杰,谭斌,钟华杰. TixV1-xCN基金属陶瓷的显微组织与力学性能[J]. 机械工程材料, 2016, 40(5): 31～34
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【3】卢明园, 范景莲, 成会朝, 等.TiC的添加对Mo-Ti合金性能与组织结构的影响［J］.稀有金属材料与工程, 2010, 39(6): 985-988.
【4】肖水清, 伍尚华.Ti(C, N)基金属陶瓷材料显微结构与性能研究进展［J］. 硬质合金, 2014, 31(2): 113-119.
【5】ZOU B, JI W B, HUANG C Z, et al.Effects of superfine refractory carbide additives on microstructure and mechanical properties of TiB2-TiC+Al2O3 composite ceramic cutting tool materials［J］. Journal of Alloys and Compounds, 2014, 585: 192-202.
【6】孙万昌, 佘晓林, 张磊, 等.Ti(C, N)基金属陶瓷材料的强韧化研究进展［J］. 热加工工艺, 2014(18): 17-20.
【7】李冠晓, 胡巍巍, 刘宁, 等.VC对纳米Ti(C, N)基金属陶瓷组织和性能的影响［J］. 热处理, 2011, 26(3): 48-51.
【8】詹斌, 刘宁.VC对纳米TiN改性Ti(C, N)基金属陶瓷组织和性能的影响［J］. 硬质合金, 2010, 27(4): 215-220.
【9】WANG J, LIU Y, ZHANG P, et al.Effect of VC and nano-TiC addition on the microstructure and properties of micrometer grade Ti(CN)-based cermets［J］. Materials & Design, 2009, 30: 2222-2226.
【10】WANG J, WANG Y S, DING Y C, et al.Reaction synthesis of Fe-(Ti, V)C composites［J］. Journal of Materials Processing Technology, 2008, 97: 54-58.
【11】HANJUNG K, SUN-A J, CHANG-YUL S, et al. Mechanical properties of (Ti, V)C-Ni composite prepared using ultrafine solid-solution (Ti, V)C phase［J］. Ceramics International, 2014, 40: 12579-12583.
【12】SEPULVEDA R, ARENAS F. TiC-VC-Co: a study on its sintering and microstructure［J］. International Journal of Refractory Metals & Hard Materials, 2001, 19(4): 389-396.
【13】FREDDY A, CESAR R, RANIER S. Friction and tribological behavior of (Ti, V)C-Co cermets［J］. Journal of Materials Processing Technology, 2003, 143/144: 822-826.
【14】陈敏, 汤爱涛, 刘胜明, 等.钛铁矿制备Ti(C, N)粉C/N的控制研究［J］. 功能材料, 2013, 44(15): 2271-2275.
【15】秦凯旋, 蒋阳, 陈进, 等.Mo含量对TiC基金属陶瓷组织和力学性能的影响［J］. 金属功能材料, 2011, 18(4): 32-36.
【16】LIN N, WU C H, HE Y H, et al. Effect of Mo and Co additions on the microstructure and properties of WC-TiC-Ni cemented carbides［J］. Journal of Materials Processing Technology, 2012, 30: 107-113.
【17】ZHENG Y, ZHONG J, LV X P, et al. Microstructure and performance of functionally graded Ti(C, N)-based cermets prepared by double-glow plasma carburization［J］. Journal of Materials Processing Technology, 2014, 44: 109-112.
【18】YING L, JIN Y Z, YU H J, et al. Ultrafine (Ti, M)(C, N)-based cermets with optimal mechanical properties ［J］. International Journal of Refractory Metals & Hard Materials, 2011, 29(1): 104-107.
【19】JUNG J, KANG S. Sintered (Ti, W)C carbides ［J］. Scripta Materialia, 2007, 56: 561-564.
【20】PARK S, JUNG J, KANG S, et al. The carbon nonstoichiometry and the lattic parameter of(Ti1-xWx)C1-y［J］. Journal of Materials Processing Technology, 2010, 30: 1519-1526.
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