Patent ID: 8513020
Filing Date: 2013-08-20
Classification: G01N

Abstract:
1. A system for sulfide stress cracking testing, comprising: an enclosed testing chamber including a fluid bath comprising a liquid saturated with hydrogen sulfide gas; a test fixture disposed in the testing chamber and at least partially submerged in the fluid bath, wherein the test fixture includes a housing having an internal chamber in fluid communication with the fluid bath and a test assembly disposed in the internal chamber; wherein the test assembly comprises: a first platen engaging each of the upper supports and adapted to transfer an applied vertical load to the upper supports; a second platen disposed in the internal chamber of the housing above the first platen, wherein the second platen slidingly engages a pair of opposed vertical internal walls of the housing and is configured to transfer the applied vertical load to the first platen; a test specimen mounted in the test assembly between the upper supports and the lower supports, the upper supports engaging an upper surface of the test specimen and the lower supports engaging a lower surface of the test specimen; wherein the test specimen has a longitudinal axis, a first end, a second end opposite the first end, and includes a weld and a heat affected zone axially disposed between the first end and the second end; wherein the first upper support is axially positioned between the weld and the first end and the second upper support is axially positioned between the weld and the second end; wherein the first lower support is axially positioned between the first upper support and the first end and the second lower support is axially positioned between the second upper support and the second end.