Special features of the ductile-brittle transition in iron-based powder materials. II. Physicomechanical model of the ductile-brittle transition in cracking resistance tests

1988 ◽  
Vol 27 (3) ◽  
pp. 212-215
Author(s):  
S. A. Firstov ◽  
Yu. N. Podrezov ◽  
A. G. Zherdin ◽  
L. G. Shtyka ◽  
É. Ch. Pioro ◽  
...  
2021 ◽  
Vol 877 (1) ◽  
pp. 012009
Author(s):  
Mohammed Qasim Kareem ◽  
Vladimir Dorofeyev

Abstract It is possible to expand the applications ranges of powder material products by enhancing the performance properties of these products in addition to their manufacturability and reliability together, it’s possible by materials structures modification. In this paper, the effect of fullerene (C60) additives to iron-based powder material has been studied. All samples produced by Hot-Forging (HF) powder materials technology. Green and HF density of the obtained samples calculated by volume / weight and Archimede’s principle, respectively. The effect of technological parameters on the microstructure of carbon steels’ samples was done by an ALTAMI MET-1M metallographic microscope. Tensile test executed by using of a universal testing machine UMM –5 and the microhardness (HV10) was measured by REICHERT hardness test machine. The results showed that the HF C60 steels’ samples had higher density and strength of 0.81 and 25%, respectively, with a good plasticity in comparison with graphite steels’ samples.


1988 ◽  
Vol 27 (10) ◽  
pp. 805-809
Author(s):  
O. V. Evtushenko ◽  
S. M. Chernega

1990 ◽  
Vol 29 (5) ◽  
pp. 411-416 ◽  
Author(s):  
S. A. Firstov ◽  
Yu. N. Podrezov ◽  
L. G. Shtyka ◽  
A. G. Zherdin ◽  
A. A. Malyshenko

Sign in / Sign up

Export Citation Format

Share Document