Influence of Heat Treatment on the Failure Mode of High Strength Steel in Aggressive Environments

1982 ◽  
Vol 40 ◽  
pp. 464-465
Author(s):  
R. Padmanabhan ◽  
W. E. Wood
Keyword(s):  
Heat Treatment ◽  
Stress Intensity ◽  
Failure Mode ◽  
Applied Stress ◽  
Fracture Mode ◽  
High Strength Steel ◽  
High Strength ◽  
Nacl Solution ◽  
300M Steel

The predominant fracture mode during hydrogen assisted environmental failure of 300M steel is intergranular. However, limited attempts have been made to study the failure mode, both as a function of applied stress intensity and as a function of heat treatment. In this investigation, studies were conducted for 300M steel specimens subjected to load in a 3.5% NaCl solution.

Pitting behaviors of low-alloy high strength steel in neutral 3.5 wt% NaCl solution based on in situ observations

2020 ◽  
Vol 863 ◽  
pp. 114056
Author(s):  
Hongyi Su ◽  
Shicheng Wei ◽  
Yi Liang ◽  
Yujiang Wang ◽  
Bo Wang ◽  
...  
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Nacl Solution ◽  
In Situ Observations

The Bauschinger Effect in a High-Strength Steel

1966 ◽  
Vol 88 (2) ◽  
pp. 480-488 ◽  
Author(s):  
R. V. Milligan ◽  
W. H. Koo ◽  
T. E. Davidson
Keyword(s):  
Heat Treatment ◽  
Yield Strength ◽  
Strain Hardening ◽  
Uniaxial Tension ◽  
High Strength Steel ◽  
Bauschinger Effect ◽  
High Strength ◽  
The Other ◽  
Material Structure ◽  
Permanent Strain

The object of this work was to evaluate quantitatively the Bauschinger effect in a 4330 modified steel as a function of strength level and structure as derived from variations in heat-treatment. Material having martensitic, pearlitic, and bainitic structures was studied utilizing a uniaxial tension-compression specimen. Various ways of defining the magnitude of the Bauschinger effect are explained. One is a conventional approach as suggested by Welter, the other a technique which takes strain-hardening into account. The results show the Bauschinger effect to be independent of yield strength for three different strength levels of the martensitic material. It is only mildly influenced by material structure and independent of the direction of overstrain. The Bauschinger effect increases with increasing permanent strain up to approximately 2 percent and thereafter remains essentially constant.

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