Stress Corrosion of ASTM Grade-2 and Grade-12 Titanium in Simulated Rock Salt Brines at 83°C
- 1 July 1985
- journal article
- Published by Association for Materials Protection and Performance (AMPP) in Corrosion
- Vol. 41 (7) , 375-380
- https://doi.org/10.5006/1.3583011
Abstract
Slow strain rate tensile tests were conducted on Grade-2 and Grade-12 titanium in simulated rock salt brines at about 83 C. The Grade-12 titanium studied showed superior mechanical properties compared to Grade-2 titanium, which were presumably due to smaller grain size and the presence of alloying elements and beta phase. Although neither metal showed obvious indications of stress corrosion cracking (SCC), the total elongation and reduction in area values showed some decrease. At the edge of the fracture surfaces in Grade-12 titanium specimens, a shear lip region was observed, but it was not related to the observed loss in ductility. Optical and scanning electron microscopy (SEM) results are discussed to elucidate the fracture mechanism.Keywords
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