Standard Practice for Preparation and Use of Direct Tension Stress-Corrosion Test Specimens

Importancia y uso:

4.1 Axially loaded tension specimens provide one of the most versatile methods of performing a stress-corrosion test because of the flexibility permitted in the choice of type and size of test specimen, stressing procedures, and range of stress levels.

4.2 The uniaxial stress system is simple; hence, this test method is often used for studies of stress-corrosion mechanisms. This type of test is amenable to the simultaneous exposure of unstressed specimens (no applied load) with stressed specimens and subsequent tension testing to distinguish between the effects of true stress corrosion and mechanical overload (2). Additional considerations in regard to the significance of the test results and their interpretation are given in Sections 6 and 10.

4.3 Wide variations in test results may be obtained for a given material and specimen orientation with different specimen sizes and stressing procedures. This consideration is significant especially in the standardization of a test procedure for interlaboratory comparisons or quality control.

Subcomité:

G01.06

Referida por:

G0047-22, G0168-17, G0030-22, G0123-00R22E01, G0139-05R22, G0107-95R20E01, G0129-21, G0041-90R18, G0129-21, G0058-85R23, G0103-97R23E01, G0111-21A

Volúmen:

03.02

Número ICS:

77.060 (Corrosion of metals)

Palabras clave:

constant load; constant strain; quantitative stress; stress-corrosion cracking; stress-corrosion test specimen; tension specimens;