High temperature creep behavior of in-situ TiC particulate reinforced Fe-Cr-Ni matrix composite

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	High temperature creep behavior of in-situ TiC particulate reinforced Fe-Cr-Ni matrix composite
	X. D. Hui; Y. S. Yang; Z. F. Wang; G. Q. Yuan; X. C. Chen
	2000
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	282 期号:1-2 页码:187-192
摘要	The high temperature creep properties of the composites containing 5, 10, 16 vol% TiC particulate were investigated in the temperature range 973-1223 K and the stress range 40-160 MPa. The composites exhibit pronounced decrease of the creep strain rate and increase of the apparent activation energy and the threshold stress with increasing the volume fraction of TIC particulate. The creep life of the composites containing 5 and 10 vol% TiC particulate is longer than that of matrix alloy. By considering the threshold stress, all creep strain rates of the composites can be rationalized by a power-law with a stress exponent of 5. Transmission electron microscopy examination of the deformation microstructure reveals the local climb mechanism of dislocations acts as the predominant deformation mode in the composites. The dislocations are generally pinned by TiC particles and are bent to a high curvature on climbing over the particles. Thus a significant amount of new dislocation lines has to be created, leading to an increase of the threshold stress. (C) 2000 Elsevier Science S.A. All rights reserved.
部门归属	chinese acad sci, inst met res, dept superalloy & specimen castings, shenyang 110015, peoples r china. shandong univ technol, jinan 250061, peoples r china. chinese acad sci, inst phys, beijing 10080, peoples r china.;hui, xd (reprint author), chinese acad sci, inst met res, dept superalloy & specimen castings, shenyang 110015, peoples r china
关键词	Fe-cr-ni Matrix Composite In Situ Tic parTiculate High Temperature Creep Threshold Stress Dislocation Mechanism Liquid-iron Alloys Precipitation
URL	查看原文
WOS记录号	WOS:000085966600027
引用统计	被引频次：43[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37055
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. D. Hui,Y. S. Yang,Z. F. Wang,et al. High temperature creep behavior of in-situ TiC particulate reinforced Fe-Cr-Ni matrix composite[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2000,282(1-2):187-192.
APA	X. D. Hui,Y. S. Yang,Z. F. Wang,G. Q. Yuan,&X. C. Chen.(2000).High temperature creep behavior of in-situ TiC particulate reinforced Fe-Cr-Ni matrix composite.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,282(1-2),187-192.
MLA	X. D. Hui,et al."High temperature creep behavior of in-situ TiC particulate reinforced Fe-Cr-Ni matrix composite".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 282.1-2(2000):187-192.