共搜索到18025条信息，每页显示10条信息，共1803页。用时：0小时0分0秒558毫秒

• 板状WC晶种加入对硬质合金性能的影响

  来源： 《硬质合金2009年第3期》——李志林 朱丽慧 卞凯强

  板状WC晶种加入对硬质合金性能的影响 李志林1,朱丽慧1,卞凯强1 (1.上海大学,上海市现代冶金及材料制备重点实验室,上海,200072) 摘要:通过加入板状WC晶种制备含板状WC晶粒的WC-10%Co和WC-20%Co硬质合金,研究了加入板状WC晶种对两种硬质合金显微组织和性能的影响.结果表明,加入板状WC晶种后硬质合金中的WC晶粒具有明显的板状特征,WC-20%Co中的板状WC晶粒比WC-10%Co多且尺寸大.少量晶种的加入对WC-10%Co和WC-20%Co硬质合金密度基本无影响,但两者的硬度和抗弯强度都有所增加,特别是抗弯强度分别提高了12%和11%. 关键词:WC-Co; 硬质合金; 板状WC晶种; 显微组织; 性能; [全文内容正在添加中] ......

• 再生WC-Co复合粉及高耐磨性硬质合金涂层的制备

  来源： 《中国有色金属学报2015年第12期》——刘雪梅 王海滨 宋晓艳 范金莲

  标志码:A Preparation of recycled WC-Co composite powder and high wear resistance cemented carbide coating LIU Xue-mei, WANG Hai-bin, SONG Xiao-yan, FAN Jin-lian (College of Materials Science... drying and heat-treatment. The recycled WC-Co cemented carbide coating was fabricated by high velocity oxy fuel (HVOF) method. Moreover, the microstructure, wear resistance and its mechanism of the coating......

• 渗碳时间对梯度硬质合金显微组织和抗弯强度的影响

  来源： 《中国有色金属学报2007年第2期》——龙郑易 刘咏 贺跃辉 肖逸锋 周永贵 李芳

  S. Materials science of cemented carbides-an overview[J]. Materials and Design, 2001, 22(6): 483-489. [6] Zhigang Zak Fang. Correlation of transverse rupture strength of WC-Co with hardness[J... parameters and fracture strength of WC-Co cemented carbides[J]. Materials Chemistry and Physics, 2000, 62(1): 35-43.               ......

• Sintering characteristics and microstructure of WC-Co-VC/Cr₃C₂ ultrafine cemented carbides

  来源： 《Rare Metals2009年第5期》——LEI Yiwena and WU Enxib a School of Mechanical and Electronic Engineering, Tianjin Polytechnic University, Tianjin , China b State Key Laboratory of Powder Metallurgy, Central South University, Changsha , China

  Sintering characteristics and microstructure of WC-Co-VC/Cr3C2 ultrafine cemented carbidesLEI Yiwena and WU Enxib a School of Mechanical and Electronic Engineering, Tianjin Polytechnic University..., microstructure, and mechanical properties of ultrafine WC-12%Co-0.2%VC/0.5%Cr3C2 cemented carbides were investigated. Dilatometric and differential thermal analyses (DTA) indicate that the compacts start......

• WC-8Ni硬质合金中Ni池缺陷的显微结构及形成过程

  来源： 《中国有色金属学报(英文版)2015年第3期》——时凯华 周科朝 李志友 张 斗 昝秀颀

  to that of the traditional WC-Co grades. SHI et al [8] reported in the preliminary work that WC-9Ni cemented carbides with different methods of adding Cr exhibited different immersion corrosion resistances... hardness similar to the conventional WC-Co cemented carbides and superior flexure strength and fracture toughness. On the contrary, little attention has been paid to the defects, especially the Ni......

• 热处理YT14硬质合金微观结构与性能的关系

  来源： 《中南大学学报(自然科学版)1993年第2期》——吕满珊 刘武 张富贵 刘静波

  ......

• Cr-RE共掺杂WC-Co合金 烧结体表面RE₂S₃和RE₂O₂S相的原位形成

  来源： 《中国有色金属学报(英文版)2014年第2期》——张 立 冯于平 陈 述 吴厚平

  -wei, CHENG Xin, NAN Qing, WNAG Zhe, FENG Yu-ping. Micro characteristics of binder phases in WC-Co cemented carbides with Cr-V and Cr-V-RE additives [J]. International Journal of Refractory Metals... in WC-Co alloy [19,20]. Therefore, it can be deduced that there is a good wetability of liquid RE to the WC phase. Although the fast directional migration behavior of RE in cemented carbide still......

• 具有梯度结构的涂层硬质合金刀片

  来源： 《中国有色金属学报2005年第5期》——张武装 刘咏 贺跃辉 羊建高 龙郑易

  . The relation between microstructures and properties of heat treatment YT14 cemented carbides[J]. Central South Mining Institute Journal, 1993, 24(2): 227-232. [11]谭永生, 蔡和平, 刘忠侠, 等. WC-Co硬质合金热处理的TEM观察[J]. 稀有金属材料科学与工程, 1997, 26(5): 58-61. TAN Yong-sheng, CAI He-ping, LIU Zhong-xia, et al. TEM observation on Heat treatment of WC-Co cemented carbides[J]. Rare Metals Material Science and Engineering, 1997......

• Microstructures and properties of WC-20Co-1Y₂O₃ cemented carbide by hot-press and liquid phase sintering^①

  来源： 《中南大学学报(英文版)2004年第2期》——张立 陈述 W. D. Schubert 黄伯云

   ......

• 微波烧结技术在硬质合金制备中的应用

  来源： 《中国有色金属学报2014年第6期》——鲍 瑞 易健宏

  technology for cemented carbides[J]. Rare Metal Materials and Engineering, 2010, 39(5): 820-825. [15] 娄 静, 易健宏, 周承商. 微波烧结WC-Co硬质合金致密化与晶粒生长[J]. 中国有色金属学报, 2012, 22(7): 1976-1983. LOU Jing, YI Jian-hong...穿透深度分别仅为2.5和4.7 μm.在微波烧结硬质合金后期,由于趋肤效应的存在,容易造成合金表层组织与中心组织之间产生差异,如图3[6]所示. 图3  微波制备WC-Co硬质合金表层的SEM像[6] Fig. 3  SEM image of surface of microwave-sintered WC-Co cemented carbide[6] 对微波制备WC-Co硬......