2009
DOI: 10.1007/s11223-009-9117-4
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A concept of mechanical stability of structural steels

Abstract: We have developed a new approach to the evaluation of the capability of steels to resist brittle fracture based on the physical ideas concerning the micromechanism of transition of metals from the plastic state into the brittle state. Within the framework of this approach, we propose new microscopic characteristics of stability of the metal, namely, the parameter of mechanical stability and the coefficient of mechanical stability. The procedure of experimental evaluation of these parameters is described and th… Show more

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Cited by 4 publications
(5 citation statements)
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“…Therefore a degree of excess of the parameter P ms over a unity specifies a stability level of the metal plastic state in PZ at the given loading conditions (load, temperature, fluence etc.) [9][10][11]. Higher the value of P ms in comparison to a unity, higher the level of stability of plastic state, and, respectively, higher the allowable radiation hardening value for the RPV metal.…”
Section: Theoretical Basicmentioning
confidence: 99%
See 3 more Smart Citations
“…Therefore a degree of excess of the parameter P ms over a unity specifies a stability level of the metal plastic state in PZ at the given loading conditions (load, temperature, fluence etc.) [9][10][11]. Higher the value of P ms in comparison to a unity, higher the level of stability of plastic state, and, respectively, higher the allowable radiation hardening value for the RPV metal.…”
Section: Theoretical Basicmentioning
confidence: 99%
“…In criterion (3) the local characteristics σ f and σ 11 are used. A transition from local to global parameters was realized in [9][10][11]. Therefore the criterion of fracture initiation may be presented as follows:…”
Section: Theoretical Basicmentioning
confidence: 99%
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“…References [3,4] present in detail the physical fundamentals of the mechanical stability concept. However, to get the substance of this concept clear, it is sufficient to analyze the simplified tensile strain hardening diagram for metal (Fig.…”
Section: Mechanical Stability -A Measure Of the Resistance Of Metal Tmentioning
confidence: 99%