Microstructure/mechanical property relationship in a DS Cast Ni3Al-base alloy

1993 ◽  
Vol 2 (4) ◽  
pp. 589-596 ◽  
Author(s):  
Y. F. Han ◽  
Y. M. Wang ◽  
M. C. Chaturvedi

2011 ◽  
Vol 183 ◽  
pp. 169-174
Author(s):  
Hanna Smolenska

The influence of oxidation time on the microstructure and mechanical property, especially on the hardness, and of Co-base alloy coatings were investigated. Coatings were manufactured by PTA cladding. The cobalt alloy was exposed to temperature 800°C in air for 1, 22 and 200 hours. As a result of oxidation treatment the scale layers were formed and changes in microstructure was observed. Also changes in hardness were noticed.











2014 ◽  
Vol 794-796 ◽  
pp. 985-987 ◽  
Author(s):  
Katsumi Watanabe ◽  
Kenji Matsuda ◽  
Susumu Ikeno ◽  
Tomoo Yoshida ◽  
Satoshi Murakami

Al-Zn-Mg alloy has been known as one of the aluminum alloys with the good age-hardening ability and the high strength among commercial aluminum alloys. The mechanical property of the limited ductility, however, is required to further improvement. In this work, three alloys, which were added Cu or Ag into the Al-Zn-Mg alloy, were prepared to compare the effect of the additional elements on the aging behavior. The content of Ag and Cu were 0.2at.% and the same as, respectively. Ag or Cu added alloy showed higher maximum hardness than base alloy. The particle shape and rod shape precipitates were observed in all alloys peak-aged at 423K. According to addition of Ag or Cu, the number density of the precipitates increased higher than that of base alloy.



2015 ◽  
Vol 60 (2) ◽  
pp. 977-979 ◽  
Author(s):  
K. Watanabe ◽  
K. Matsuda ◽  
S. Ikeno ◽  
T. Yoshida ◽  
S. Murakami

AbstractAl-Zn-Mg alloy has been known as one of the aluminum alloys with the good age-hardening ability and the high strength among commercial aluminum alloys. The mechanical property of the limited ductility, however, is required to further improvement. In this work, three alloys, which were added Cu or Ag into the Al-Zn-Mg alloy, were prepared to compare the effect of the additional elements on the aging behavior. The content of Ag and Cu were 0.2at.% and the same as, respectively. Ag or Cu added alloy showed higher maximum hardness than base alloy. The particle shape and rod shape precipitates were observed in all alloys peak-aged at 423K. According to addition of Ag or Cu, the number density of the precipitates increased higher than that of base alloy.





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