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Elevated temperature Creep test of Metallic Material

ASTM E139 is a standard method for performing elevated temperature creep testing of metallic materials under constant strain rate conditions. This procedure involves subjecting a cylindrical specimen to a constant tensile load at a specified temperature for several hours to several days, depending on the material and application. The deformation of the specimen is continuously measured using an extensometer, and the resulting data is used to determine the material’s creep properties, such as creep rate, creep strain, and time to failure, under constant loading conditions.

The main objective of the test is to evaluate the creep behaviour of metallic materials at elevated temperatures and to determine their time-dependent deformation characteristics. The test results can be used to design and select materials for high-temperature applications, as well as to develop more accurate predictive models for the long-term behaviour of metallic materials under stress.

The ASTM E139 standard provides guidelines for conducting the elevated temperature creep test, including specimen preparation, testing equipment, and data analysis. It also outlines the reporting requirements for test results, such as stress and strain data, test duration, and temperature. By following this standard, the consistency and reproducibility of test results can be ensured, allowing for meaningful comparisons between different materials and testing conditions.

Anil K Vashishta

Anil K Vashishta is a Metallurgical Engineer from the National Institute of Technology, Rourkela, with over 29 years of expertise in materials, corrosion, and metallurgical/mechanical laboratory management. As the Managing Director of Colossal Consultants LLC in the United Arab Emirates—founded in 2019 to serve the GCC and South-Eastern regions—Anil applies his extensive background to support diverse industries, particularly oil and gas.
A Certified NACE Corrosion Specialist and NACE Material Selection Design Specialist, Anil specializes in corrosion assessment and mitigation, material selection, turnkey laboratory setup, and root cause/failure analysis. His comprehensive skills also include in-situ replica metallography, condition assessment, coating evaluations, and cathodic protection. With a deep passion for technical excellence and practical solutions, Anil continues to drive innovation and best practices in the field of materials engineering.

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