Evaluation of Mechanical Properties of Hastelloy C-276 Weld by Small Punch Test

Abstract:

Mechanical properties of the electron beam weld zone, which are different from the base metal, of Hastelloy C-276 were studied by small punch test (SPT) technology. Load–displacement curves and material properties were obtained by using miniaturized plate-type specimens (3mm diameter×(0.15-0.4) mm thick) from the weld and base metal respectively. The result shows that the maximum load of weld is larger than that of the base metal under the same thickness, meaning the higher strength of the weld. Furthermore, finite element method analysis was performed to investigate the effects of specimen thickness, the diameter of loading ball and the diameter of center hole in holder on the plastic damage of Hastelloy C-276.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 1483-1487
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.1483
• Online since: June 2014
• Authors: Yan Ma*, Yan Ze Xu, Shu Yu Zhang, Chen Lin Lu
• Keywords: Hastelloy C-276, Mechanical Property, Numerical Simulation, Small Punch Test , Weld

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