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  1. Science in China Series E: Technological Sciences
  2. Science in China Series E: Technological Sciences : Volume 45
  3. Science in China Series E: Technological Sciences : Volume 45, Issue 2, April 2002
  4. Medium-range order clusters in metal melts
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Science in China Series E: Technological Sciences : Volume 60
Science in China Series E: Technological Sciences : Volume 59
Science in China Series E: Technological Sciences : Volume 58
Science in China Series E: Technological Sciences : Volume 57
Science in China Series E: Technological Sciences : Volume 56
Science in China Series E: Technological Sciences : Volume 55
Science in China Series E: Technological Sciences : Volume 54
Science in China Series E: Technological Sciences : Volume 53
Science in China Series E: Technological Sciences : Volume 52
Science in China Series E: Technological Sciences : Volume 51
Science in China Series E: Technological Sciences : Volume 50
Science in China Series E: Technological Sciences : Volume 49
Science in China Series E: Technological Sciences : Volume 48
Science in China Series E: Technological Sciences : Volume 47
Science in China Series E: Technological Sciences : Volume 46
Science in China Series E: Technological Sciences : Volume 45
Science in China Series E: Technological Sciences : Volume 45, Issue 6, December 2002
Science in China Series E: Technological Sciences : Volume 45, Issue 5, October 2002
Science in China Series E: Technological Sciences : Volume 45, Issue 4, August 2002
Science in China Series E: Technological Sciences : Volume 45, Issue 3, June 2002
Science in China Series E: Technological Sciences : Volume 45, Issue 2, April 2002
Medium-range order clusters in metal melts
The formation of titania polymorphs under hydrothermal condition
Theory of intracavity-frequency-doubled solid-state four-level lasers
Magnetic property and interlayer segregation in spin valve metal multilayers
Morphological evolution model for unidirectional solidification of multicomponent alloys
Properties and convergence analysis of FM$^{m}$let transform
Reliability of Au/PZT/BIT/p-Si ferroelectric diode
Giant magnetoresistance effect in Ni buffered Co/Cu/Co sandwich
The role of atomic hydrogen and hydrogen-induced martensites in hydrogen embrittlement of type 304L stainless steel
Influence of obstacle-produced turbulence on development of premixed flames
Interface conjunction factors of the second phase particles in alloys and their effects
Numerical research on the interaction between coronal mass ejection and streamer
Variable universe adaptive fuzzy control on the quadruple inverted pendulum
Science in China Series E: Technological Sciences : Volume 45, Issue 1, February 2002
Science in China Series E: Technological Sciences : Volume 44
Science in China Series E: Technological Sciences : Volume 43
Science in China Series E: Technological Sciences : Volume 42
Science in China Series E: Technological Sciences : Volume 41
Science in China Series E: Technological Sciences : Volume 40

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Medium and Short Range Order Structures in Al Based Alloy Melts

Article

Medium-range order clusters in metal melts

Content Provider Springer Nature Link
Author Bian, Xiufang Xuemin, Pan Xubo, Qin Minhua, Jiang
Copyright Year 2002
Abstract Structures of molten metals Cu and Al, alloys Cu−Al, Al−Ni, Al−Fe and, Al−Si were investigated by using high temperature X-ray diffractometer. It has been found that there are not only shortrange order structures (SRO) but also medium range order structures (MRO) in Cu−Al, Al−Ni, Al−Fe alloy melts. There are only short-range order structures in the pure metals Cu and Al and Al−Si alloy melts at different temperatures. It has also been found that the presence and the disappearance of the MRO structures in molten metals are a function of temperature. Moreover, the pre-peak in the structure factor is an indication of MRO in molten metals. There is a pre-peak in each structure factor S(Q) of Al−Fe alloy melt containing 14 wt% Fe, 16 wt% Fe and 19 wt% Fe at 1550°C, showing that there are the medium range order structures in these alloy melts. For Al-35 wt% Ni alloy, the pre-peak exists in S(Q) when the temperature is lower than 1300°C, and it is weakened drastically when the temperature surpasses 1300°C. The pre-peak occurs at values of scattering vector Q=18.5 nm$^{−1}$ in the structural factor of Cu-12 wt %Al alloy melts at 1250°C. The height of the pre-peak in the melt decreases with increasing temperature. These results show that there exist not only the SRO structure but also MRO structure in the Al-TM melts, and the MRO is correspondent to the tendency of formation of chemical compound. The formation mechanism of the MRO is also studied in this work. Based on the measured results of Cu−Al alloy, a model of the MRO is presented.
Starting Page 113
Ending Page 119
Page Count 7
File Format PDF
ISSN 10069321
Journal Science in China Series E: Technological Sciences
Volume Number 45
Issue Number 2
e-ISSN 1862281X
Language English
Publisher Science in China Press
Publisher Date 2002-01-01
Publisher Place Beijing
Access Restriction Subscribed
Subject Keyword liquid structure structure factor medium range order Engineering
Content Type Text
Resource Type Article
Subject Engineering Materials Science
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