[1]黄陆军,耿林.网状结构钛基复合材料研究进展[J].中国材料进展,2016,(09):006-10.[doi:10.7502/j.issn.1674-3962.2016.09.05]
　HUANG Lujun,GENG Lin.Progress on Titanium Matrix Composites with Network Microstructure[J].MATERIALS CHINA,2016,(09):006-10.[doi:10.7502/j.issn.1674-3962.2016.09.05]
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网状结构钛基复合材料研究进展
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2016年第09期
页码:
006-10
栏目:
特约研究论文
出版日期:
2016-09-30

文章信息/Info

Title:
Progress on Titanium Matrix Composites with Network Microstructure
作者:
 黄陆军; 耿林
 (哈尔滨工业大学 材料科学与工程学院
Author(s):
 HUANG Lujun;  GENG Lin
 (School of Materials Science and Engineering, Harbin Institute of Technology,
关键词:
钛基复合材料; 网状结构; 粉末冶金; 原位自生; 塑性; 强度
DOI:
10.7502/j.issn.1674-3962.2016.09.05
文献标志码:
A
摘要:
为填补550-800℃用轻质、耐热、高强韧、可加工结构材料的空白，以及解决粉末冶金钛基复合材料脆性大与增强效果差的瓶颈问题，基于构型设计与精确调控，采用低能球磨与热压烧结技术，实现了网状结构钛基复合材料稳定化制备，较传统增强相均匀分布钛基复合材料塑性提高5倍，并具有更高的室温与高温增强效果及更强的可设计性，较钛合金基体使用温度提高约200℃。有望在550-800℃使用环境下部分替代高温合金实现减重40%，在航空航天等领域具有广泛的应用前景而备受关注。综述网状结构钛基复合材料设计与制备、变形与成形、热处理改性与控制、高温性能的研究进展，指出已经突破的关键问题与仍然存在的问题，提出未来发展方向。结合应用需求，一方面应进一步完善现有复合材料体系、理论与技术，实现其应用解决迫切需求；另一方面，通过多级多尺度构型与工艺设计，开发新一代综合性能更加优异的钛基复合材料与改性技术。
Abstract:
In order to fill a gap of structural material used at 550-800 oC possessing low density, high temperature durability, high toughness, processing and deformability, and solve bottleneck problem of high brittleness and low strengthening effect of titanium matrix composites (TMCs) fabricated by powder metallurgy, network structured TMCs were successfully and steadily fabricated by low energy milling and hot pressing sintering technologies, based on architecture design and accurate adjustment. The ductility of the network structured TMCs can be increased by 5 times compared with that of the conventional TMCs with a homogenous microstructure. Moreover, the network structured TMCs exhibited higher strengthening effect at room and high temperatures and possessed designable character. The service temperature can be increased by 200oC compared with that of the monolithic alloy. In other words, the network structured TMCs can be used at 550-800 oC to partially replace high-temperature alloy to get weight loss of 40%. Therefore, they possess extensive application potential in aerospace and got much attention. Recent research progress of design and fabrication, deformation and forming, heat treatment modification and control, high temperature property of the network structured TMCs were reviewed. In addition, the solved key problems and the remained problems were also pointed out, and then the further research directions in future are proposed. Combining with the practical application demand, on the one hand, the present material systems, theory and technology should be further optimized for their practical applications to solve urgent demand; on the other hand, new TMCs and modification technology can be exploited by multi-scale hierarchical design and process design in order to further enhance their combination property.
更新日期/Last Update: 2016-08-29