超细晶碳化钨-钴(WC-Co)硬质合金是当今具有高强度、高硬度最佳综合性能的材料.通过测定WC-Co材料的磁性能来控制其制备工艺具有重要的理论意义和实用价值.本工作用喷雾热解-流态化连续还原碳化法制备了WC-Co纳米复合粉末,用等离子放电烧结(SPS烧结)技术制备了超细晶硬质合金,测试了不同钴含量样品的碳含量、密度和磁滞回线,由此计算了化合碳含量、钴平均自由程和碳化钨平均晶粒度,并与实测数据进行了比较.
参考文献
| [1] | Chabretou V.;Allibert CH.;Missiaen JM. .Quantitative analysis of the effect of the binder phase composition on grain growth in WC-Co sintered materials[J].Journal of Materials Science,2003(12):2581-2590. |
| [2] | Shao G Q;Duan X L;Xie J R;Yu X H Zhang W F Yuan R Z .Sintering of nanocrystalline WC-Co composite powder[J].Reviews on Advanced Materials Science,2003,5(04):281-2861. |
| [3] | Shao G Q;Wu B L;Duan X L;Xie J R,Wei M K,Yuan R Z.Nanocrystalline Grains & superfine particles of tungsten carbide-cobalt powders[A].Ohio, USA: The American CeramicSociety,2000:375-383. |
| [4] | Shao G Q;Duan X L;Wu B L;Xie J R,Wei M K,Yuan R Z.Continuous reduction carburisation mechanism of precursor-derived nanocrystalline WC-Co[A].Ohio, USA: The American Ceramic Society,2000:207-217. |
| [5] | Shao G Q;Wu B L;Duan X L;Xie J R,Wei M K,Yuan R Z.Low temperature carbonization of W-Co salts powder.23rd Annual Conference on Composites[A].Ohio, USA: The American Ceramic Society,1999:45-50. |
| [6] | 刘寿荣,郝建民,褚连青.硬质合金的比矫顽磁力[J].硬质合金,2000(01):48-51. |
| [7] | 刘寿荣 .WC-Co硬质合金成分的磁性测定原理[J].硬质合金,1999,16(03):129-135. |
| [8] | Fang Z;Eason J W .Nondestrutive Evaluation of WC-Co composites using magnetic properties[J].International Journal of Powder Metallurgy,1993,29(03):259-265. |
| [9] | Exner H E .Physical and chemical nature of cemented carbides[J].International Metals Reviews,1997,24(04):149-151. |
| [10] | S. Sundin;S. Haglund .A comparison between magnetic properties and grain size for WC/Co hard materials containing additives of Cr and V[J].International Journal of Refractory Metals & Hard Materials,2000(6):297-300. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%