Abstract
A novel fracture mechanics technique has been employed for the determination of threshold stress intensity factor (K Iscc) for stress corrosion cracking (SCC) using small circumferential notch tensile (CNT) specimens. The technique was applied successfully for testing SCC susceptibility of heat treated 4340 steel in 3.5% sodium chloride solutions at room temperature. The KIscc has been determined to be 15 MPa.m 1/2, which is very close to K Iscc values obtained by others using standard specimens. The fracture surfaces have been examined by scanning electron microscopy (SEM) in order to identify the evidence of chloride stress corrosion cracks.
| Original language | English |
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| Title of host publication | 46th Annual Conference of the Australasian Corrosion Association 2006 |
| Subtitle of host publication | Corrosion and Prevention 2006 |
| Pages | 230-237 |
| Number of pages | 8 |
| Publication status | Published - 1 Dec 2006 |
| Event | Australasian Corrosion Association (ACA) Conference 2006: Corrosion and Prevention - Hobart, Australia Duration: 19 Nov 2006 → 22 Nov 2006 Conference number: 46th |
Conference
| Conference | Australasian Corrosion Association (ACA) Conference 2006 |
|---|---|
| Abbreviated title | CP 2006 |
| Country/Territory | Australia |
| City | Hobart |
| Period | 19/11/06 → 22/11/06 |
Keywords
- 4340 steel
- Circumferential notched tensile (CNT) Specimen
- Sodium chloride (NaCl)
- Stress corrosion cracking (SCC)
- Stress intensity factor (K )
- Threshold stress intensity factor (K )