SwRI: Corrosion Testing and Research, Stress Corrosion Cracking

  image of biaxial stress corrosion cracking testing fixture
 

Biaxial stress corrosion cracking testing fixture

The materials laboratory at Southwest Research Institute (SwRI) has dedicated facilities that can perform a wide variety of environmentally assisted cracking and stress corrosion cracking tests.

 

Standardized Stress Tests

Standardized tests for oil and gas, chemical, and other applications include:

  • ASTM G38

  • ASTM G39

  • NACE TM0177

  • NACE TM0198

Specialized Stress Corrosion Cracking Testing Capabilities

  • Biaxial stress corrosion cracking frames capable of conducting testing in aggressive environments, such as brines with CO2 and H2S

  • Test frames for applying cyclic loads with the measurement of crack propagation rates

 

image of load frames with cyclic loading capability   image of SwRI engineer performing stress corrosion cracking tests

Load frames with cyclic loading capability. Tests using pre-cracked compact tension specimens were conducted to determine the susceptibility of Ni-Cr-Mo alloys to stress corrosion cracking in simulated groundwater.

 

Stress corrosion cracking tests

     
image of c-ring test specimins   image of post test analysis of fracture surface using a scanning electron microscope

C-ring test specimens

  

Post test analysis of fracture surface using a scanning electron microscope

 

For more information about the stress corrosion cracking research programs and capabilities at SwRI or how you can contract with SwRI, please contact Elizabeth Trillo, Ph.D., at etrillo@swri.org or (210) 522-4210.

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Southwest Research Institute® (SwRI®) is an independent, nonprofit, applied engineering and physical sciences research and development organization with 12 technical divisions using multidisciplinary approaches to problem solving. The Institute occupies more than 1,200 acres and provides nearly two million square feet of laboratories, test facilities, workshops, and offices for more than 3,300 employees who perform contract work for industry and government clients.