| 1. | No reaction was between the silicon carbide particles and the ferroalloy matrix during the heat treatment
在复合材料的热处理过程中并未发现sicp与基体之间反应的进一步进行。 |
| 2. | Some abnormal microstructures in the tungsten carbide particle reinforced steel matrix composites were observed as the tungsten particulate content was increased
随着wc颗粒含量的增加， wc钢复合材料中出现了一些不良组织。 |
| 3. | Microstructure analysis showed that the tungsten carbide particle reinforced steel matrix composites , which were made by electroslag melting and casting method , not only had low content of porosity and nonmetal inclusion , but also could reduce the free carbon content immensely
显微缺陷分析显示，采用电冶熔铸工艺制备的wc钢复合材料不仅气孔、夹杂物含量低，无明显游离石墨痕迹，而且较好地解决了wc颗粒的偏聚问题，具有明显的质量优势。 |
| 4. | The age hardening characteristic of as - cast cu20ni20mn and cu20ni35mn alloys and the interface characteristic between the alloy and cast tungsten carbide were studied , and on the basis of this study , composites of cu - ni - mn alloy reinforced with different volume fraction ( 0 - 45vol . % ) and different size ( 42 - 362 m ) of cast tungsten carbide particles were made by vacuum hot - pressing liquid sintering technology . pin on disk two body abrasion tests have been performed with different size of sic abrasive under different loads
本文研究了铸态cu20ni20mn和cu20ni35mn合金的时效硬化特性及其与铸造碳化钨的界面特性，并在此基础上以不同尺寸( 42 362 m )的铸造碳化钨颗粒为增强体，采用真空热压液相烧结技术制备了不同颗粒含量( 0 45vol . )的铸造碳化钨颗粒增强cu - ni - mn合金基复合材料；以不同粒度的sic为磨料，在不同载荷条件下利用销?盘磨损试验机测试了复合材料的二体磨料磨损性能。 |
| 5. | The wear mechanism of tungsten carbide particle reinforced steel matrix composites was studied according to the frictional and wear characteristics and the scanning electron microscopy photographs of worn surfaces after wear testing . the effect of heat treatment and tungsten carbide content on wear resistance was investigated as well
结合磨损特性曲线和不同磨损时间的摩擦面sem照片，分析了wc钢复合材料的磨损机理，并讨论了不同热处理工艺和wc颗粒含量对wc钢复合材料磨损性能的影响。 |
| 6. | Cross section morphology analysis showed that the fracture appearance of tungsten carbide particle reinforced steel matrix composites was a mixture of quasi - cleavage fracture and toughness fracture . the fracture appearance of tungsten carbide particle always displayed as quasi - cleavage fracture , while the cross section morphology of steel matrix transformed with the heat treatment techniques
断口形貌分析显示， wc钢复合材料的断口形貌呈韧-脆复合断口特征，硬脆的wc颗粒常发生脆性解理断裂，而韧性较高的钢基体的断口形貌则因热处理工艺而异。 |
