Resistance to deformation and fracture of 35Kh3NM steel under conditions of shock loading

Abstract

Consequently, the mechanical characteristics of the condition of the metal may not serve as an indicator of its damage by pores. CONCLUSIONS I. The process of development of sources of failure in heterogeneous heat-resistant steels is a complex one and may not be described within the limits of any single physical model.More promising is a phenomenological approach to describing the kinetics of this process.2. The relationship of the damage of the metal by pores to the time of creep is presented and, on the basis of it, a structural method is proposed for determination of the residual life based on the degree of damage by pores.3. The short-term mechanical properties may not serve as an indicator of the degree of damage of the metal by pores..

The effects of cold rolling on the microstructural and spall response of 1100 aluminum

“…Also, Garkushin et al 24 studied the spall response of rolled D16 aluminum (Russian equivalent of Al 2024) and found the spall strength to be less when the material was shock loaded perpendicular to the rolling direction (transverse). This result is consistent with those obtained by Vignjevic et al 23 for aluminum and Gluzman et al, 25 Gray et al, 26,27 and Ogorodnikov et al 28 for other materials.…”

Spall fracture: methodological aspects, mechanisms and governing factors

“…13 the resistance to spall fracture is evidently less when shock load is applied in the direction perpendicular to the rolling direction. In this regard the behavior of D16 aluminum alloy is similar to observed earlier for textured steels and alloys (Glusman et al 1985;Gray III et al 2000Ogorodnikov et al 2004). Metallurgical examination of recovered samples of textured steel by Ogorodnikov et al (2004) has demonstrated that coalescence of formed cracks or voids occurs mainly in the rolling direction whereas the degree of coalescence in transversal direction is very low.…”

Effect of structural factors on mechanical properties of the magnesium alloy Ma2-1 under quasi-static and high strain rate deformation conditions

“…A direct comparison of the free surface velocity profiles shows that the spall strength of the specimens in the second case is approx imately 17% less than the value obtained in the first case when the spall strength was equal to 1.04 GPa. In this respect, the behavior of the magnesium alloy Ma2 1 is similar to the behavior of the textured steels and aluminum alloy D16T previously studied under the same conditions [9,[17][18][19][20]. The difference we observe in the spall strengths for different orientations of the shock wave loading with respect to the direction of rolling is probably a consequence of the fact that the potential sources of fracture have an elongated shape and are oriented in the direction of rolling.…”