In situ fabrication and mechanical properties of Al–AlN composite by hot extrusion of partially nitrided AA6061 powder

2011 ◽  
Vol 26 (14) ◽  
pp. 1719-1725 ◽  
Author(s):  
Peng Yu ◽  
M. Balog ◽  
M. Yan ◽  
G.B. Schaffer ◽  
M. Qian
Keyword(s):  
Mechanical Properties ◽  
Hot Extrusion ◽  
In Situ Fabrication ◽  
Image Position

Abstract

Facile in-situ fabrication of novel organic nanoparticle hydrogels with excellent mechanical properties

2009 ◽  
Vol 19 (39) ◽  
pp. 7340 ◽  
Author(s):  
Yongtao Wu ◽  
Zhe Zhou ◽  
Qingqing Fan ◽  
Long Chen ◽  
Meifang Zhu
Keyword(s):  
Mechanical Properties ◽  
In Situ Fabrication

Fabrication of Aluminum/Aluminum Nitride Composites by Reactive Mechanical Alloying

2007 ◽  
Vol 534-536 ◽  
pp. 181-184
Author(s):  
Seung Hoon Yu ◽  
Kwang Seon Shin
Keyword(s):  
Mechanical Properties ◽  
Mechanical Alloying ◽  
Elevated Temperatures ◽  
Hot Extrusion ◽  
Extrusion Process ◽  
Processing Technique ◽  
Compression Tests ◽  
Composite Powders ◽  
Al Matrix Composites

Various reactions and the in-situ formation of new phases can occur during the mechanical alloying process. In the present study, Al powders were strengthened by AlN, using the in-situ processing technique during mechanical alloying. Differential thermal analysis and X-ray diffraction studies were carried out in order to examine the formation behavior of AlN. It was found that the precursors of AlN were formed in the Al powders and transformed to AlN at temperatures above 600oC. The hot extrusion process was utilized to consolidate the composite powders. The composite powders were canned in an Al can and then extruded at elevated temperatures. The microstructure of the extrusions was examined by SEM and TEM. In order to investigate the mechanical properties of the extrusions, compression tests and hardness measurements were carried out. It was found that the mechanical properties and the thermal stability of the Al/AlN composites were significantly greater than those of conventional Al matrix composites.

In-Situ Solid-State Synthesis of Mg Composite with Mg2Si Dispersoids

2005 ◽  
Vol 475-479 ◽  
pp. 497-500
Author(s):  
Ritsuko Tsuzuki ◽  
Katsuyoshi Kondoh
Keyword(s):  
Mechanical Properties ◽  
Solid State ◽  
High Performance ◽  
Extrusion Direction ◽  
Hot Extrusion ◽  
Extrusion Process ◽  
Synthesis Temperature ◽  
Solid State Synthesis ◽  
Casting Alloys

Super light and high performance Mg2Si/Mg composites, which had excellent mechanical properties, were developed via the combination of solid-state synthesis and hot extrusion process. In this study, cold compacting (CP) and repeated plastic working (RPW) were firstly carried out for the mixture of Mg-Si powders, and the refinement of both Mg grains and dispersoids. Each specimen was evaluated by observation of microstructure and tensile test. As a result, it was understood that Mg2Si dispersoids were refined and dispersed into Mg matrix, and were flowed along extrusion direction. And their mechanical properties were higher than the conventional die casting alloys. Also the effect of RPW as the improvement of properties and the decrease of synthesis temperature were confirmed.

In situ fabrication of TiC–TiB2 precipitates in Mn-steel using thermal explosion (TE) casting

2015 ◽  
Vol 30 (7) ◽  
pp. 1019-1028 ◽  
Author(s):  
Yunhong Liang ◽  
Qian Zhao ◽  
Zhihui Zhang ◽  
Zhiwu Han ◽  
Xiujuan Li ◽  
...  
Keyword(s):  
Thermal Explosion ◽  
In Situ Fabrication ◽  
Image Position ◽  
Mn Steel

Abstract

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