Results 71 to 80 of about 14,297,709 (246)

Eutectic solidification and its role in casting porosity formation

, 2004
Understanding and controlling the eutectic solidification process in Al-Si alloys permits prediction of the formation of casting porosity, eventually leading to methods for its control and elimination.
Dahle, AK, Lu, L, Nogita, K, McDonald, SD   +3 more
core   +1 more source

Green Preparation of High Surface Area Cu-Au Bimetallic Nanostructured Materials by Co-Electrodeposition in a Deep Eutectic Solvent

, 2021
In this work we present an electrodeposition method in a deep eutectic solvent (DES) to prepare bimetallic high surface area nanostructures of Cu and Au with tunable structure and composition.
Elena Plaza, Mayoral, Ib, Chorkendorff, Hanne, Falsig, María, Escudero-Escribano, Kim, Degn Jensen, Paula, Sebastián Pascual, Kim Nicole, Dalby   +6 more
core   +1 more source

Unusual coordination structure in undercooled eutectic Ga-In alloy melt

, 2014
The local structures in the normal and undercooled liquid eutectic Ga-In alloy are investigated by using X-ray absorption spectroscope (XAS), X-ray diffractometer (XRD) and the ab initio molecular dynamics (AIMD) simulations. The results from these three
Jingyu Qin, Yanwen Bai, Yao Liu, Xinxin Li, Kai Zhang, Xiufang Bian, Chuncheng Yang, Xiaolin Zhao, Le Feng   +8 more
core   +1 more source

Three-Phase Planar Eutectic Growth Models with Rod + Hexagon or Semi-Regular Structure for a Ternary Eutectic System

, 1999
PTo consider a phase selection in a ternary eutectic system, analytical expressions for three-phase planar eutectic growth, assuming the geometries as regular, rod + hexagon and semi-regular types, have been derived.
Himemiya, Toshiaki, 姫宮, 利融, ヒメミヤ, トシアキ   +2 more
core  

Achieving enhanced strength retention at elevated temperatures in ultrafine-fibrous interconnected Al–Ce–Ni eutectic alloy solidified under super-gravity field

Journal of Materials Research and Technology
Super-gravity field was reported to strongly intensify the buoyancy-driven flow of liquid during solidification, affecting the solute convection and morphology of eutectic structure in binary alloys.
Zhanghua Gan, Yingyu Li, Penghui Zhang, Chuandong Wu, Shuai Shen, Yuanyuan Huang, Songqiang Zhong, Tian Yang, Guoqiang Luo, Jing Liu   +9 more
doaj   +1 more source

Effect of strontium and solidifi cation rate on eutectic grain structure in an Al-13 wt% Si alloy [PDF]

China Foundry, 2009
The influence of strontium addition and solidification rate on eutectic grain structure in a near-eutectic Al-Si alloy was investigated. The characteristic temperature of eutectic nucleation (TN), minimum temperature prior to recalescence (TM), and the ...
Liao Hengcheng, Bi Juanjuan, Zhang Min
doaj  

Influence of Erbium Addition on the Microstructural Evolution and Tensile Properties of Al/Mg2Si in-situ Metal Matrix Composites

Iranian Journal of Materials Science and Engineering, 2021
This study deals with the effects of erbium (Er) addition on the microstructural evolution and tensile properties of Al-Mg2Si in-situ metal matrix composites.
Zahra Rousta, Esmaeil Tohidlou, Hamed Khosravi   +2 more
doaj  

Effect of Ce on Casting Structure of Near-rapidly Solidified Al-Zn-Mg-Cu Alloy

Cailiao gongcheng, 2017
Through using XRD,DSC,SEM,EDS and other modern analysis methods, the effects of rare earth element Ce on microstructure and solidification temperature of Al-Zn-Mg-Cu under different cooling rates were studied, the principle of Ce on grain refining and ...
HUANG Gao-ren, SUN Yi-meng, ZHANG Li, LIU Yu-lin   +3 more
doaj   +1 more source

Al 67, Cu 33 (wt%), eutectic alloy

, 2010
This alloy is of the eutectic composition and has solidified with a lamellae eutectic structure. The Al and θ phases form co-operatively. The eutectic lamellae grows in the principal direction of heat flow; the lamellae structure is stabilised by the ...
DoITPoMS, University of Cambridge, Prof T W Clyne, Department of Materials Science and Metallurgy, University of Cambridge   +1 more
core  

Coupled and competitive eutectic growth

, 2011
A description of the competitive growth is presented in the paper. The description is associated with the competition between eutectic structure and primary phase formation.
Trepczyńska-Łent, M.
core