Structural characterization of rapidly solidified white cast iron powders

1983 ◽  
Vol 18 (2) ◽  
pp. 483-492 ◽  
Author(s):  
Lawrence E. Eiselstein ◽  
Oscar A. Ruano ◽  
Oleg D. Sherby
2020 ◽  
Vol 63 (3) ◽  
pp. 519-527 ◽  
Author(s):  
Baochao Zheng ◽  
Jiandong Xing ◽  
Yangzhen Liu ◽  
Wei Li
Keyword(s):  

Materials ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2596
Author(s):  
Aida B. Moreira ◽  
Laura M. M. Ribeiro ◽  
Pedro Lacerda ◽  
Ricardo O. Sousa ◽  
Ana M. P. Pinto ◽  
...  

High-chromium white cast iron (WCI) specimens locally reinforced with WC–metal matrix composites were produced via an ex situ technique: powder mixtures of WC and Fe cold-pressed in a pre-form were inserted in the mold cavity before pouring the base metal. The microstructure of the resulting reinforcement is a matrix of martensite (α’) and austenite (γ) with WC particles evenly distributed and (Fe,W,Cr)6C carbides that are formed from the reaction between the molten metal and the inserted pre-form. The (Fe,W,Cr)6C precipitation leads to the hypoeutectic solidification of the matrix and the final microstructure consists of martensite, formed from primary austenite during cooling and eutectic constituent with (Fe,Cr)7C3 and (Fe,W,Cr)6C carbides. The presence of a reaction zone with 200 µm of thickness, between the base metal and the composite should guarantee a strong bonding between these two zones.


1997 ◽  
Vol 4-5 ◽  
pp. 161-168
Author(s):  
Georg Frommeyer ◽  
Oleg D. Sherby ◽  
Oscar A. Ruano ◽  
W.J. Kim ◽  
J. Wolfenstine

1982 ◽  
Vol 13 (3) ◽  
pp. 355-361 ◽  
Author(s):  
Oscar A. Ruano ◽  
Jeffrey Wadsworth ◽  
Oleg D. Sherby

2015 ◽  
Vol 231 ◽  
pp. 11-18
Author(s):  
Anna Kula ◽  
Ludwik Blaz ◽  
Piotr Kusper ◽  
Makoto Sugamata

Series of experiments on a series of Al-Fe-Mg alloys were performed to determine the effect of rapid solidification (RS) on the material strengthening, which result from the refining of thegrain size and intermetallic compound. Additionally, an enhancement of the material strengthening due to magnesium addition was also observed. Manufacture of RS Al-Fe-Mg alloys combined a spraydeposition of the molten alloy on the rotating water-cooled copper roll and plastic consolidation bymeans of powders pressing and hot extrusion methods. The results suggest that the rapid solidification provides an effective method of microstructure refinement and, in combination with solid solutionhardening due to Mg, leads to significant improvement of mechanical properties of Al-Fe-Mg based alloys.


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