| 双连续Si3N4/1Cr18Ni9Ti复合材料的制备和冲蚀性能 | |
| Alternative Title | Preparation and Erosion Performance for Co-continuous Phase Composites of Si3N4/1Cr18Ni9Ti |
| 杜奇; 高勇; 任志恒; 曹小明; 王超; 张劲松 | |
| 2019 | |
| Source Publication | 材料研究学报
 |
| ISSN | 1005-3093 |
| Volume | 000Issue:1.0Pages:34-42 |
| Abstract | 用凝胶注模和压力铸造两步法制备具有双连续结构的Si3N4/1Cr18Ni9Ti复合材料并分析其物相组成、宏观和微观结构,研究了材料的冲蚀率与攻角、流速、含沙量以及时间的关系。结果表明,与1Cr18Ni9Ti材料相比,Si3N4/1Cr18Ni9Ti复合材料具有双连续结构,界面结合良好;其冲蚀率随着攻角变化的幅度小,冲蚀率与流速之间的关系由1Cr18Ni9Ti材料的线性关系转变为指数关系(E∝V0.67),且随着时间的延长冲蚀率降低;冲蚀率与含沙量之间的关系仍呈线性。具有双连续结构的Si3N4/1Cr18Ni9Ti复合材料,具有更加优异的耐冲蚀性能。 |
| Other Abstract | Composites with co-continuous structure of Si3N4/1Cr18Ni9 Ti were prepared via a twostep process, namely gel casting and pressure casting. The phase composition, macro-and micro-structure of the composites were characterized. The erosion rate in flow slurry composed of water and quartz sand, as a function of impingement angle, flow velocity, sand content and erosion time was assessed in comparison with the plain 1Cr18Ni9 Ti. Results show that Si3N4/1Cr18Ni9 Ti composites exhibited a perfect co-continuous phase structure with a good combination between Si3N4 and 1Cr18Ni9Ti;the fluctuation of erosion rate as a function of impingement angle of this composites is smaller than that of 1Cr18Ni9Ti;the erosion rate of composites has an exponent relationship with flow velocity(E∝V0.67), while there is a linear relationship between the erosion rate and flow velocity for 1Cr18Ni9Ti;the erosion rate of this composites decreases gradually with the increasing erosion time and then stabilizes, while that of 1Cr18Ni9 Ti is hardly changed;There is a linear relationship between the erosion rate and sand content in the slurry for the two materials. The composite with co-continuous structure of Si3N4/1Cr18Ni9 Ti exhibits superior erosion resistance, in contrast with the plain 1Cr18Ni9 Ti steel. |
| Keyword | 复合材料 双连续相 泥浆冲蚀 1Cr18Ni9Ti 泡沫陶瓷 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:6414942 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/145978 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | 杜奇,高勇,任志恒,等. 双连续Si3N4/1Cr18Ni9Ti复合材料的制备和冲蚀性能[J]. 材料研究学报,2019,000(1.0):34-42. |
| APA | 杜奇,高勇,任志恒,曹小明,王超,&张劲松.(2019).双连续Si3N4/1Cr18Ni9Ti复合材料的制备和冲蚀性能.材料研究学报,000(1.0),34-42. |
| MLA | 杜奇,et al."双连续Si3N4/1Cr18Ni9Ti复合材料的制备和冲蚀性能".材料研究学报 000.1.0(2019):34-42. |
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