IMR OpenIR
The Linear Thermal Expansion of Bulk Nanocrystalline Ingot Iron from Liquid Nitrogen to 300 K
S. G. Wang; Y. Mei; K. Long; Z. D. Zhang
Corresponding AuthorWang,SG(sgwang@imr.ac.cn)
2010
Source PublicationNanoscale Research Letters
ISSN1931-7573
Volume5Issue:1Pages:48-54
AbstractThe linear thermal expansions (LTE) of bulk nanocrystalline ingot iron (BNII) at six directions on rolling plane and conventional polycrystalline ingot iron (CPII) at one direction were measured from liquid nitrogen temperature to 300 K. Although the volume fraction of grain boundary and residual strain of BNII are larger than those of CPII, LTE of BNII at the six measurement directions were less than those of CPII. This phenomenon could be explained with Morse potential function and the crystalline structure of metals. Our LTE results ruled out that the grain boundary and residual strain of BNII did much contribution to its thermal expansion. The higher interaction potential energy of atoms, the less partial derivative of interaction potential energy with respect to temperature T and the porosity free at the grain boundary of BNII resulted in less LTE in comparison with CPII from liquid nitrogen temperature to 300 K. The higher LTE of many bulk nanocrystalline materials resulted from the porosity at their grain boundaries. However, many authors attributed the higher LTE of many nanocrystalline metal materials to their higher volume fraction of grain boundaries.
description.department[wang, s. g.; long, k.; zhang, z. d.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wang, s. g.; long, k.; zhang, z. d.] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [mei, y.] dalian fisheries univ, inst sci, dalian 116023, peoples r china.;wang, sg (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;sgwang@imr.ac.cn
KeywordLinear Thermal Expansion Bulk Nanocrystallined Materials Severe Rolling Technique Electrochemical Corrosion Behavior Different Grain Sizes Microstructure Diffraction Selenium Metals
DOI10.1007/s11671-009-9441-4
URL查看原文
Language英语
WOS IDBMC:10.1007/s11671-009-9441-4
PublisherSpringer New York
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/31513
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
S. G. Wang,Y. Mei,K. Long,et al. The Linear Thermal Expansion of Bulk Nanocrystalline Ingot Iron from Liquid Nitrogen to 300 K[J]. Nanoscale Research Letters,2010,5(1):48-54.
APA S. G. Wang,Y. Mei,K. Long,&Z. D. Zhang.(2010).The Linear Thermal Expansion of Bulk Nanocrystalline Ingot Iron from Liquid Nitrogen to 300 K.Nanoscale Research Letters,5(1),48-54.
MLA S. G. Wang,et al."The Linear Thermal Expansion of Bulk Nanocrystalline Ingot Iron from Liquid Nitrogen to 300 K".Nanoscale Research Letters 5.1(2010):48-54.
Files in This Item:
File Name/Size DocType Version Access License
1281.pdf(322KB) 开放获取--
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[S. G. Wang]'s Articles
[Y. Mei]'s Articles
[K. Long]'s Articles
Baidu academic
Similar articles in Baidu academic
[S. G. Wang]'s Articles
[Y. Mei]'s Articles
[K. Long]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[S. G. Wang]'s Articles
[Y. Mei]'s Articles
[K. Long]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.