scholarly journals Elucidation of Microstructure Formation Mechanism through Competitive Reactions during Initial Hydrogenation in Mg/Cu Super-Laminate Composites

2021 ◽  
Author(s):  
Koji Tanaka ◽  
Ryota Kondo ◽  
Hiroyuki T. Takeshita
Keyword(s):  
Formation Mechanism ◽  
Microstructure Formation ◽  
Laminate Composites ◽  
Competitive Reactions

Formation mechanism of micro/nano-structures through competitive reactions in Mg/Cu super-laminate composites during initial hydrogenation

2015 ◽  
Vol 645 ◽  
pp. S72-S75 ◽  
Author(s):  
Koji Tanaka ◽  
Kazuya Shibata ◽  
Kosuke Kurumatani ◽  
Shuki Ikeuchi ◽  
Shiomi Kikuchi ◽  
...  
Keyword(s):  
Formation Mechanism ◽  
Laminate Composites ◽  
Nano Structures ◽  
Competitive Reactions

Competitive Reactions and Formation Mechanism of Microstructures in Mg/Cu Super-Laminate Composites during Initial Hydrogenation

2018 ◽  
Vol 941 ◽  
pp. 1927-1932 ◽  
Author(s):  
Koji Tanaka ◽  
Ryota Kondo ◽  
Hiroyuki T. Takeshita
Keyword(s):  
Formation Mechanism ◽  
Laminate Composites ◽  
Competitive Reactions

Competitive reactions and formation mechanism of microstructures in Mg/Cu super-laminate composites (SLCs) during initial hydrogenation were studied. During initial hydrogenation of Mg/Cu SLCs, hydrogenation of Mg and alloying of Mg with Cu followed by hydrogenation of Mg2Cu are competitive. It is found that microstructures of Mg/Cu SLCs during initial hydrogenation have changed drastically depending on the order of hydrogenation of Mg and Mg2Cu. The microstructures of Mg/Cu SLCs after initial hydrogenation can be categorized in 3 types.

The Metastable Micro-Nanocrystals and Formation Mechanism of Rapidly Solidified Al-21Si Multi-Alloys

2014 ◽  
Vol 636 ◽  
pp. 97-100 ◽  
Author(s):  
Ai Qin Wang ◽  
Hui Hui Han ◽  
Jing Pei Xie ◽  
Ji Wen Li
Keyword(s):  
Formation Mechanism ◽  
Melt Spinning ◽  
Primary Silicon ◽  
Nucleation And Growth ◽  
Microstructure Formation ◽  
Microstructure Morphology ◽  
Alloy Microstructure ◽  
Rapidly Solidified ◽  
Melt Spinning Technique ◽  
Scanning Electron

In the present work, rapidly solidified Al-21Si-0.8Mg-1.5Cu-0.5Mn alloys strips was prepared by melt-spinning technique. The microstructure morphology and phase structures of experimental alloy were characterized by means of scanning electron microscopy (SEM), transmission electric microscopy (TEM) and XRD technique. The results show that the grains were refined and the micro-nanocomposite structural were formed under rapid solidification. The nucleation and growth of primary silicon were suppressed and primary silicon could not deposited, meanwhile, α-Al phase was nucleated which prior to eutectic. The microstructure of the Al-21Si alloy was composed of micro-nanostructured α-Al phase and feather-needles-like eutectic α-Al+β-Si phase. The hypereutectic Al-21Si alloy showed the hypoeutectic microstructure. The rapidly solidified Al-21Si alloy microstructure formation mechanism has also been discussed.

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