scholarly journals Rapid solidification structures of Ni-base superalloy ribbons produced by twin-roll process.

1988 ◽  
Vol 28 (8) ◽  
pp. 645-649 ◽  
Author(s):  
Ken YASUDA ◽  
Hideyo KODAMA ◽  
Akira OKAYAMA ◽  
Masateru SUWA
Keyword(s):  
Rapid Solidification ◽  
Twin Roll ◽  
Base Superalloy

Rapid solidification characteristics in melt spinning a Ni-base superalloy

1985 ◽  
Vol 16 (10) ◽  
pp. 1773-1779 ◽  
Author(s):  
S. C. Huang ◽  
R. P. Laforce ◽  
A. M. Ritter ◽  
R. P. Goehner
Keyword(s):  
Rapid Solidification ◽  
Melt Spinning ◽  
Base Superalloy

scholarly journals Superplasticity of Rapidly Solidified Ni-base Superalloy Ribbons by Twin Roll Process.

1991 ◽  
Vol 38 (5) ◽  
pp. 660-663
Author(s):  
Ken Yasuda ◽  
Mitsuru Kobayashi ◽  
Hideyo Kodama ◽  
Masateru Suwa
Keyword(s):  
Rapidly Solidified ◽  
Twin Roll ◽  
Base Superalloy

scholarly journals Study on Development of Novel Mg-Based Alloys by Rapid Solidification Technology of Twin Roll Casting

2019 ◽  
Vol 804 ◽  
pp. 23-27
Author(s):  
Hai Jian Wang ◽  
Zhi Pu Pei ◽  
Dong Ying Ju
Keyword(s):  
Electron Microscope ◽  
Rapid Solidification ◽  
Amorphous Phase ◽  
Solidification Process ◽  
Element Distribution ◽  
High Concentration ◽  
Cooperative Research ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

In this study, Mg-based alloys were prepared by rapid solidification of twin roll casting (TRC), then microstructure and element distribution were investigated respectively with Scanning Electron Microscope (SEM) and Electron Probe Micro Analyzer (EPMA). What’s more, in order to analyze microstructure and crystal structure of Mg-based alloys, experiments on specimens with the usage of X-ray diffraction (XRD) and Transmission Electron Microscope (TEM) were also carried out. At last, the designed Mg-Re magnesium alloy with quasi-amorphous phase plus fine crystalline phase dual phase microstructure produced with our rapid solidification of TRC process. The rapid solidification process realized with a faster casting speed and a thinner roll gap that does not need any anther additional devices and vacuum environment. EPMA results and TEM analyses show that the quasi-amorphous phase has a high concentration in Al and RE element. There are quasi-amorphous phase in the middle of Mg-Re alloy cross section surrounded by dendrites phase and normal crystals. Acknowledgement. This work was supported by Cooperative Research and Development Center for Advanced Materials (CRDAM) funded by the Institute for Materials Research (IMR), Tohoku University (Project Number 18G0042).

Study on Rapid Solidification of Metal Strips

2013 ◽  
Vol 838-841 ◽  
pp. 69-75
Author(s):  
Cheng Zhou ◽  
De Wang ◽  
Deng Chao Luo ◽  
Yong Fang ◽  
Shun Yao ◽  
...  
Keyword(s):  
Rapid Solidification ◽  
Thickness Distribution ◽  
Flow Distribution ◽  
Casting Process ◽  
Pure Lead ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Uniform Flow Distribution ◽  
Commercial Purity Aluminum ◽  
Twin Roll

Aim to produce metal strips in millimeter scale, the Top Side-pouring Single Roll Casting process and the Top Side-pouring Twin Roll Casting process were investigated in this paper, using commercially pure lead and commercial-purity aluminum as the experimental materials. Numerical simulation was conducted before the experiment. The results show that, the Top Side-pouring Single Roll Casting process and the Top Side-pouring Twin Roll Casting process can both realize the uniform flow distribution and rapid solidification, but the surface of the strips cast by the former are irregularity because of free solidification, while that from the latter present a state of rolling. And one can change the gauge of nozzle and the speed of cooling roll, to regulate the thickness of thin strips, and by changing the shape of the nozzle, the thickness distribution can be handled.

scholarly journals Corrosion Behavior and Mechanical Properties of Mg-Based Alloys by Rapid Solidification Technology of Twin Roll Casting

2019 ◽  
Vol 804 ◽  
pp. 53-57
Author(s):  
Hai Jian Wang ◽  
Zhi Pu Pei ◽  
Dong Ying Ju
Keyword(s):  
Mechanical Properties ◽  
Rapid Solidification ◽  
Corrosion Behavior ◽  
Crystalline Phase ◽  
Az31 Alloy ◽  
Dual Phase ◽  
Alloy Strip ◽  
Twin Roll Casting ◽  
Roll Casting ◽  
Twin Roll

Mg-based alloys were prepared by rapid solidification of twin roll casting (TRC) which shows that the Mg-RE alloy expressed the quasi-amorphous phased and fine crystalline phase dual-phase material. Corrosion behavior of Mg-Based alloy in 3.5% NaCl solution after 48h immersion and mechanical properties were investigated. The result show that The Mg-RE alloy strip exhibited good corrosion resistance and higher ultimate tensile strength and elongation comparing to the AZ31 alloy strips. The elongation of Mg-RE alloy strip is also high than the AZ91 and ZK61 under powder metallurgy processing. These indicate that Mg-RE alloy produced by our method has a better ductility. This may due to the special microstructure of the Mg-RE alloy forms, i.e., quasi-amorphous phase plus fine crystalline phase dual phase state.

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