共搜索到1618条信息,每页显示10条信息,共162页。用时:0小时0分0秒459毫秒
粉;气体钝化;超细晶粒硬质合金 中图分类号:TF 76.133 文献标识码:A Preparation of spherical cobalt powder and its application in ultra-fine cemented carbides TAN Xing-long1, 2, YI... of cobalt powder was discussed. Ultra-fine WC-10Co cemented carbides were prepared by vacuum/pressure sintering technology using the obtained cobalt powder as raw binder material. YG10 ultra-fine......
; VC; inhibitor; cemented carbides 1 Introduction WC-Co based cemented carbides are materials typically used for metal cutting, milling, turning and rock drilling[1]. These types of materials... synthesized at low temperature [J]. Mat Sci Eng A, 2008, 485(1-2): 638-642. [2] QU X, GO J, QIN M, LEI C. Application of a wax-based binder in PIM of WC-TiCCo cemented carbides [J]. Int J Ref Met......
triangular prismatic WC grains in WC-Co base cemented carbides prepared from W and C instead of WC [J]. Journal of the Japan Society of Powder and Powder Metallurgy, 2001, 48(1): 51-60. [5... Holding AG, 2005, 2: 198-210. [15] Shatov A V, Firstov S A, Shatova I V. The shape of WC crystals in cemented carbides [J]. Materials Science and Engineering A, 1998, 242(1): 7-14. [16] Christensen M......
; Abstract: The aim of this study is to apply the concept of functionally graded materials(FGMs) to cemented carbides and to develop high...-gradient zone. There is compressive stress in the surface zone and tensile stress in the cobalt-rich zone. The maximum value of surface compressive stress is 180 MPa for WC-6Co cemented carbides......
Microstructure and mechanical properties improvements in cemented carbides by(Cr,Mo,Ta)2(C,N) inhibitorsJie Tang1,Ying Liu1,Jin-Wen Ye1,Zhi-Nan Cao1,Shi-Qing Ma1,Xiao-Jiao Yang1,21. School... can effectively suppress the grain size of tungsten carbide(WC),and consequently improve the hardness and strength of the cemented carbides;however,the toughness,one of the most important properties......
; cemented carbides; tungsten carbides; Received: 1999-12-03 WC硬质合金是由主相WC提供硬度和耐磨性, 由金属Co, Ni等塑性粘接剂提供韧性而具有高硬高强耐磨的金属陶瓷. 为了进一步提高WC硬质合金的力学性能, 必须对WC的晶粒大小进行控制. 两大关键技术包括采用超细WC粉体原料和控制烧结过程......
and fracture of cemented carbides CHEN Zhen-hua1, JIANG Yong1, CHEN Ding1, ZHANG Zhong-jian2, XU Tao2, PENG Wen2 (1. College of Materials Science and Engineering, Hunan University, Changsha 410082, China; 2. Zhuzhou Cemented Carbide Group Co., Ltd., Zhuzhou 412000, China) Abstract: In actual applications, the cemented carbides stand the multiple fatigue action. Understanding the fatigue mechanism......
="ChDivSummary">High-entropy alloys are suitable for use as a binder for cemented carbides duo to outstanding mechanical, oxidation and wear behavior. Therefore, high-entropy alloy was selected to replace...) fractural morphologies of the cemented carbides added with CoCrNiCuMn show that CoCrNiCuMn distributes in grain boundaries, and the grains are bound tightly together. Furthermore, SEM fractural......
]. Journal of Central South University of Technology, 2005, 12(s1): 5-8. [4] ZHANG Li, HUANG Bai-yun, WU En-xi. Research on dual phase cemented carbides[J]. Materials Review, 2000, 14(12): 17-19...: 151-153. [15] XU Chong-hai, AI Xing, HUANG Chuan-zhen. Research and development of rare-earth cemented carbides[J]. International Journal of Refractory Metals and Hard Materials, 2001, 19(3......
Resistance[P]. US patent: 5856626. 1999-1-5. [7] ZHANG Li, HUANG Bai-yun, WU En-xi. Research on dual phase cemented carbides[J]. Materials Review, 2000, 14 (12): 17-19.(in Chinese) [8] YANG Jian-gao, WANG... graded cemented carbide with dual phase structure ZHANG Li(张 立)1, CHEN Shu(陈 述)2, XIONG Xiang-jun(熊湘君)1, HE Yue-hui(贺跃辉)1, HUANG Bai-yun(黄伯云)1, ZHANG Chuan-fu(张传福)3 (1. State Key Laboratory of Powder......