|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Advanced Thermo-mechanical Characterization of Materials with Special Emphasis on In Situ Techniques
||Development of a High Temperature Tensile Tester for Micromechanical Characterization of Materials Supporting Meso-Scale ICME Models
||Zafir Alam, David Eastman, Minjea Jo, Kevin Hemker
|On-Site Speaker (Planned)
A high temperature tensile tester (HTTT) has been developed for the evaluation of micro-mechanical properties of materials at the meso-scale. This system allows for testing of metals and ceramics at temperatures and strain rates between room temperature an 1200 C and 10^-5 and 10^-1 s-1, respectively. The samples are heated in a compact clamshell furnace and strain is measured directly in the sample gage through digital image correlation. The HTTT extracts representative mechanical properties, as evidenced by the similarity in the evaluated micro-tensile properties of a Ni-base superalloy Ni-625 with that of the bulk response. The effectiveness of the HTTT has also been demonstrated in evaluating the tensile and stress relaxation/short-term creep properties of a polycrystalline Ni-base superalloy René 88DT. The versatility in carrying out tensile, short-term creep, bend tests, and fracture toughness measurements makes the HTTT a robust experimental tool for scale specific benchmarking of multi-scale ICME models.
||Planned: Supplemental Proceedings volume