OBSERVATIONS ON THE STRESS-CORROSION CRACK PROPAGATION CHARACTERISTICS OF HIGH-STRENGTH STEELS

1970 ◽  
Author(s):  
Clive S. Carter
Keyword(s):  
Crack Propagation ◽  
Stress Corrosion ◽  
Stress Corrosion Crack ◽  
High Strength Steels ◽  
High Strength ◽  
Propagation Characteristics

Observations on the Stress Corrosion Crack Propagation Characteristics of High Strength Steels

CORROSION ◽  
1971 ◽  
Vol 27 (11) ◽  
pp. 471-477 ◽  
Author(s):  
C. S. CARTER
Keyword(s):  
Stress Intensity ◽  
Stress Corrosion ◽  
Stress Corrosion Crack ◽  
Crack Velocity ◽  
High Strength Steels ◽  
High Strength ◽  
Testing Procedure ◽  
Crack Morphology ◽  
Wide Range ◽  
The Relationship

Abstract The relationship between stress corrosion crack velocity and crack-tip stress intensity is discussed. In most high strength steels, there is a wide range of stress intensity over which crack velocity is essentially constant. Methods of estimating this velocity are described. Values for a variety of high strength steels are presented and the effects of metallurgical variables are indicated. Implications with regard to testing procedure, crack morphology, and service performance are outlined.

The Correlation of Unstable Crack Length Data for Sheet Materials

1961 ◽  
Vol 12 (4) ◽  
pp. 395-408 ◽  
Author(s):  
E. R. Welbourne
Keyword(s):  
Crack Propagation ◽  
High Strength Steels ◽  
High Strength ◽  
Thin Sheets ◽  
Propagation Characteristics ◽  
Unstable Crack ◽  
Strain Concentration ◽  
Sheet Materials ◽  
Length Data ◽  
Semi Empirical

SummaryA semi-empirical analysis of unstable crack propagation in thin sheets is given. An effective value of the crack tip strain concentration factor is used as the criterion for instability. Good correlation is achieved with experimental results from unreinforced sheets of aluminium and titanium alloys and high-strength steels. The interdependence of geometry and stressstrain curve properties in determining the unstable crack propagation characteristics of sheet materials is illustrated in an appendix.

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