Evolution of microstructure and high temperature tensile properties of as-extruded TiBw reinforced near-α titanium matrix composite subjected to heat treatments

2018 ◽  
Vol 61 (9) ◽  
pp. 1340-1345 ◽  
Author(s):  
Bo Wang ◽  
HaoBiao Zhang ◽  
LuJun Huang ◽  
JianLi He ◽  
YouFeng Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
Tensile Properties ◽  
Matrix Composite ◽  
Heat Treatments ◽  
Titanium Matrix ◽  
Titanium Matrix Composite ◽  
High Temperature Tensile ◽  
Evolution Of Microstructure ◽  
High Temperature Tensile Properties

scholarly journals Influence of Heat Treatments on High Temperature Tensile Properties and Toughness of 9Cr-W-Mo-V-Nb Steel

2009 ◽  
Vol 95 (5) ◽  
pp. 417-425 ◽  
Author(s):  
Satoshi Obara ◽  
Takashi Wakai ◽  
Tai Asayama ◽  
Yoshiyuki Yamada ◽  
Takanori Nakazawa
Keyword(s):  
High Temperature ◽  
Tensile Properties ◽  
Heat Treatments ◽  
High Temperature Tensile ◽  
High Temperature Tensile Properties

Effect of CaO Addition on High Temperature Tensile Properties of Mg Casting Alloys

2009 ◽  
Vol 620-622 ◽  
pp. 291-294 ◽  
Author(s):  
Jung Ho Seo ◽  
Shae K. Kim
Keyword(s):  
Solid Solution ◽  
High Temperature ◽  
Tensile Properties ◽  
Alloy Element ◽  
Good Effect ◽  
Casting Alloys ◽  
Ca Addition ◽  
High Temperature Tensile ◽  
High Temperature Tensile Properties ◽  
Better Than

The microstructure, hardness and tensile properties of Mg-3Al, Mg-3Al-1.2Ca(AX31), Mg-3Al-1.2CaO(AO31), Mg-9Al, Mg-9Al-1.2Ca(AX91) and Mg-9Al-1.2CaO(AO91) alloys were investigated to identify the effect of CaO addition compared with Ca addition. The results show that the alloy element CaO has a good effect on high temperature tensile properties and CaO added alloys have superior high temperature performance compared with Ca added alloys. Addition of CaO results in the precipitation of Al2Ca phase (C15 phase) on the grain boundaries. This phase precipitated by the reduction of CaO leads to the refinement of a microstructure and improvement of tensile properties at elevated temperature similar to the Ca added Mg alloys. When added into molten Mg Ca makes solid solution in the Mg matrix up to 0.8wt %. But in case of CaO addition the thermally stable compound is precipitated directly without making solid solution with Mg matrix. Therefore, the high temperature tensile properties of CaO added Mg casting alloys are better than Ca added one at the same adding contents (1.2wt.%).

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