Mechanical properties of new low-nickel cobalt-free maraging steels

2002 ◽  
Vol 73 (12) ◽  
pp. 549-556 ◽  
Author(s):  
Ayman Fathy ◽  
Taha Mattar ◽  
Hoda El-Faramawy ◽  
Wolfgang Bleck
2019 ◽  
Vol 945 ◽  
pp. 647-652
Author(s):  
A.V. Arzumanova ◽  
A.V. Starunov

The receiving method and some properties of the composite nickel containing galvanic coating on base nickel-cobalt-oxide silicon-carbide silicon system were discussed. Chloride electrolyte for the application of the composite electroplating coating with firmness to wear and corrosion properties of nickel-cobalt-oxide silicon-carbide silicon system was elaborated. Influence of electrolysis and electrolyte composition on physico-mechanical properties (firmness to wear, corrosion resistance, hardness, internal tensions, porosity, adhesion) of the composite electrolytic coating of nickel-cobalt-silicon oxide system, electroplated from chloride electrolyte, and on the properties of electrolyte (diffusing ability, output current draught) were investigated. The possibility of using for composite electroplating of nickel-cobalt-silicon oxide-carbide silicon system as a firmness to wear coating in instead of chrome was showed.


2011 ◽  
Vol 62 (10) ◽  
pp. 976-981 ◽  
Author(s):  
A. Mahmoudi ◽  
M.R. Zamanzad Ghavidel ◽  
S. Hossein Nedjad ◽  
A. Heidarzadeh ◽  
M. Nili Ahmadabadi

2013 ◽  
Vol 55 (10) ◽  
pp. 748-754 ◽  
Author(s):  
Prangtip Uoonahaseth ◽  
Panyawat Wangyao ◽  
Gobboon Lothongkum ◽  
Nutthita Chuankrekkul ◽  
Ruangdaj Tongsri ◽  
...  

Cerâmica ◽  
2018 ◽  
Vol 64 (371) ◽  
pp. 431-435 ◽  
Author(s):  
J. Baseri ◽  
R. Naghizadeh ◽  
H. R. Rezaie ◽  
F. Golestanifard

Abstract Spark plasma sintering (SPS) is an advanced process of sintering materials at low temperatures and short time by creating spark plasma at very high temperatures in the small points and short times, by which materials with high sintering temperature can sinter at lower temperatures. In this study, alumina-nickel-cobalt composites were sintered by SPS and RHP (rapid hot press) methods to investigate the effects of electric pulse on their microstructure and mechanical properties. To this end, sample powders containing alumina, nickel-cobalt aluminate spinel, and aluminum were sintered at 1380 °C under 30 MPa pressure for 10 min by SPS and RHP and then investigated. The densities of both samples were about 98% of theoretical density. Also, hardness and fracture toughness of both samples were about 11 GPa and 14 MPa.m0.5, respectively. The bending strengths of the SPS and RHP samples were 380 and 336 MPa, respectively.


1977 ◽  
Vol 63 (3) ◽  
pp. 496-504 ◽  
Author(s):  
Yoshinao MISHIMA ◽  
Tomoo SUZUKI ◽  
Minoru TANAKA

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