B2 Fe-Al合金中与空位有关的弛豫
Relaxation Correlated to Vacancies in B2 Fe-A1 Alloys
查看参考文献30篇
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文摘
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利用内耗方法对空冷B2 Fe-Al合金中原子缺陷的运动特征进行了研究.在210℃(称为P1峰)和410℃(称为P2峰)附近观察到两个与样品热空位浓度密切相关的弛豫型内耗峰.研究表明,P1峰产生于应力作用下双空位(V_(Fe)V_(Al))的重新取向,而P2峰起源于反位置原子与Fe空位之间的相互作用.对于富Fe的B2 Fe-Al合金,P2峰产生于应力作用下三倍体缺陷(2V_(Fe)Fe_(Al))的重新取向;而对于富Al的B2 Fe-Al合金,P2峰则产生于应力诱导下Al反位置原子在Fe空位之间的运动. |
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其他语种文摘
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The internal friction behaviors of air-cooled B2 Fe-A1 alloys were examined to understand the movement of atomic defects. Two internal friction peaks were found at around 210℃ (P1 peak) and 410℃ (P2 peak), respectively. Both the peaks showed relaxational nature and they are correlated to the concentration of vacancies. It is suggested that the P1 peak originates from the reorientation of the divacancies (V_(Fe)V_(Al)), the P2 peak from the interactions between antisite atoms and Fe vacancies. For the Fe-rich B2 Fe-Al alloys, the P2 peak is attributed to the reorientation of the triple defects (2V_(Fe)Fe_(Al)) ; for the Al-rich alloys, however, it is caused by the stress-induced migration of Al antisite atoms among the Fe vacancies. |
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来源
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材料工程
,2009(11):59-64 【核心库】
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关键词
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B2
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Fe-Al合金
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内耗
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空位
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反位置原子
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地址
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1.
山东科技大学材料科学与工程学院, 山东, 青岛, 266510
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中国科学院固体物理研究所, 中科院材料物理重点实验室, 安徽, 合肥, 230031
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-4381 |
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学科
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晶体学;金属学与金属工艺 |
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基金
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国家863计划
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山东科技大学“春蕾计划”项目
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文献收藏号
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CSCD:3750032
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参考文献 共
30
共2页
|
|
1.
HARAGUCHI T. Vacancy clustering and relaxation behavior in rapidly solidified B2 FeAl ribbons.
Acts Mater,2005,53:3751-3764
|
CSCD被引
8
次
|
|
|
|
|
2.
MORRIS D G. The stress anomaly in FeAl-Fe_3Al alloys.
INTERMETALLICS,2005,13:1269-1274
|
CSCD被引
5
次
|
|
|
|
|
3.
GURURAJAN M P. Effect of interaction energies on the vacancy behavior in B2 ordered intermetallics.
MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2002,329/331:388-394
|
CSCD被引
2
次
|
|
|
|
|
4.
WüRSCHUM R. Simultaneous study of vacancy formation and migration at high temperatures in B2-type Fe aluminides.
Physical Review Letters,1995,75:97-100
|
CSCD被引
3
次
|
|
|
|
|
5.
SCHAEFER H-E. Time-differential length change measurements for thermal defect investigations:Intermetallic B2-FeAl and B2-NiAl compounds,a case study.
Physical Review Letters,1999,82:948-951
|
CSCD被引
5
次
|
|
|
|
|
6.
KASS M. The formation of defects in Fe-Al alloys:Electrical resistivity and specific heat measurements.
INTERMETALLICS,2002,10:951-966
|
CSCD被引
5
次
|
|
|
|
|
7.
KIM S M. Long range order and vacancy properties in Al-rich Fe_3Al and Fe_3Al(Cr) alloys.
Acts Mater,1998,46:2587-2602
|
CSCD被引
6
次
|
|
|
|
|
8.
NOWICK A S.
Anelastic relaxation in crystalline solids,1972
|
CSCD被引
61
次
|
|
|
|
|
9.
周正存. Al含量对Fe-Al合金Zener弛豫的影响.
物理学报,2005,54:251-255
|
CSCD被引
7
次
|
|
|
|
|
10.
冯端.
金属物理学第三卷,金属力学性质,2000
|
CSCD被引
1
次
|
|
|
|
|
11.
BEVINGTON P R.
Data Reduction and Error Analysis for the Physical Science,1969
|
CSCD被引
3
次
|
|
|
|
|
12.
KUBASCHEWSKI O.
Iron-Binary Phase Diagrams,1982
|
CSCD被引
13
次
|
|
|
|
|
13.
VLAD L. Thermodynamic factor evaluated from diffuse X-ray scattering.
Materials Transactions JIM,1999,40:132-136
|
CSCD被引
1
次
|
|
|
|
|
14.
LANG H. Longrange ordering in B2 FeAl:a resistometric study.
INTERMETALLICS,2002,10:283-292
|
CSCD被引
6
次
|
|
|
|
|
15.
FU C L. Origin of ordering in B2-type transition-metal aluminides:Comparative study of the defect properties of PdAl,NiAl,and FeAl.
Physical Review B:Condensed Matter,1995,52:3151-3158
|
CSCD被引
1
次
|
|
|
|
|
16.
MORRIS M A. Vacancies aggregates and hardening in FeAl.
MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,1998,258:99-107
|
CSCD被引
3
次
|
|
|
|
|
17.
MAYER J. Concentrations of atomic defects in B2-Fe_xAl_(1-x),An ab-initio study.
PHYSICA STATUS SOLIDI B-BASIC RESEARCH,1995,191:283-298
|
CSCD被引
1
次
|
|
|
|
|
18.
FU C L. The effect of electronic structure on the defect properties of FeAl.
MATERIALS SCIENCE & ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,1997,239/240:761-768
|
CSCD被引
8
次
|
|
|
|
|
19.
HARAGUCHI T. A study of vacancy-type defects in the B2-phase region of the Fe-Al system by positron annihilation method.
Intermetallies,2001,9:763-770
|
CSCD被引
2
次
|
|
|
|
|
20.
GOLOVIN I S. Anelasticity of Fe-Al alloys,revisited.
Intermetallica,2004,12:125-150
|
CSCD被引
8
次
|
|
|
|
|
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