Microstructure characterization of a directionally solidified Mg-12wt.%Zn alloy: Equiaxed dendrites, eutectic mixture and type/ morphology of intermetallics

2018 ◽  
Vol 204 ◽  
pp. 105-131 ◽  
Author(s):  
Nathália C. Verissimo ◽  
Crystopher Brito ◽  
Conrado R. Afonso ◽  
José E. Spinelli ◽  
Noé Cheung ◽  
...  
Keyword(s):  
Eutectic Mixture ◽  
Microstructure Characterization ◽  
Directionally Solidified ◽  
Zn Alloy ◽  
Equiaxed Dendrites

A TEM investigation of a hyper-eutectic lead-tin alloy

1988 ◽  
Vol 46 ◽  
pp. 562-563
Author(s):  
John A. Sutliff
Keyword(s):  
Volume Diffusion ◽  
Eutectic Mixture ◽  
Precipitation Reaction ◽  
Directionally Solidified ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Diffusion Controlled ◽  
Discontinuous Precipitation Reaction ◽  
Controlled Precipitation

Near-eutectic Pb-Sn alloys are important solders used by the electronics industry. In these solders, the eutectic mixture, which solidifies last, is the important microstructural consituent. The orientation relation (OR) between the eutectic phases has previously been determined for directionally solidified (DS) eutectic alloys using x-ray diffraction or electron chanelling techniques. In the present investigation the microstructure of a conventionally cast, hyper-eutectic Pb-Sn alloy was examined by transmission electron microscopy (TEM) and the OR between the eutectic phases was determined by electron diffraction. Precipitates of Sn in Pb were also observed and the OR determined. The same OR was found in both the eutectic and precipitation reacted materials. While the precipitation of Sn in Pb was previously shown to occur by a discontinuous precipitation reaction,3 the present work confirms a recent finding that volume diffusion controlled precipitation can also occur.Samples that are representative of the solder's cast microstructure are difficult to prepare for TEM because the alloy is multiphase and the phases are soft.

Microstructure characterization of phase transformations in a Zn–22 wt%Al–2 wt%Cu alloy by XRD, SEM, TEM and FIM

2000 ◽  
Vol 313 (1-2) ◽  
pp. 154-160 ◽  
Author(s):  
Héctor J. Dorantes-Rosales ◽  
Vı́ctor M. López-Hirata ◽  
José L. Méndez-Velázquez ◽  
Maribel L. Saucedo-Muñoz ◽  
David Hernández-Silva
Keyword(s):  
Phase Transformations ◽  
Microstructure Characterization ◽  
Cu Alloy

Mechanical properties and microstructure characterization of coated AM2 Al 6061-T6 mats exposed to simulated thermal blast

2009 ◽  
Vol 16 (1) ◽  
pp. 1-10 ◽  
Author(s):  
C. Wilhelm ◽  
G. LaCaille ◽  
N. Wright ◽  
N. Ward ◽  
C. Shu ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Microstructure Characterization ◽  
Al 6061

Microstructure characterization of high-temperature, oxidation-resistant Si-B-C-N films

2013 ◽  
Vol 542 ◽  
pp. 167-173 ◽  
Author(s):  
Jie He ◽  
Minghui Zhang ◽  
Jiechao Jiang ◽  
Jaroslav Vlček ◽  
Petr Zeman ◽  
...  
Keyword(s):  
High Temperature ◽  
High Temperature Oxidation ◽  
Microstructure Characterization ◽  
Temperature Oxidation ◽  
Oxidation Resistant

High resolution microstructure characterization of the interface between cold sprayed Al coating and Mg alloy substrate

2014 ◽  
Vol 289 ◽  
pp. 366-369 ◽  
Author(s):  
Qiang Wang ◽  
Dong Qiu ◽  
Yuming Xiong ◽  
Nick Birbilis ◽  
Ming-Xing Zhang
Keyword(s):  
High Resolution ◽  
Microstructure Characterization ◽  
Mg Alloy ◽  
Alloy Substrate ◽  
Al Coating
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