|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||Advanced Approach in Investigating the Effects of Hydrogen Trapping on Fish-scaling Resistance of Enameled Steels
||Yi Ting Lin, Hung-Wei Yen, Lung-Ren Chiang
|On-Site Speaker (Planned)
||Yi Ting Lin
This work aims at developing advanced and new approach in studying hydrogen trapping in interstitial-free (IF) steels with enamel. Unprecedented experimental methods were applied to understand behavior of hydrogen trapping. These methods directly detect hydrogen escape from enameled specimen by thermal desorption analysis (TDA) and permeation test with gas chromatography. Two IF steels with different microstructural design were used to validate their contrast in fish-scaling resistance. Their microstructures were investigated by using optical microscope (OM), scanning electron microscope (SEM), electron probe microanalysis (EPMA), and transmission electron microscope (TEM). The results indicated that the conventional TDA or electrochemical permeation test cannot provide appropriate estimation for fish-scaling resistance. Here, the evidence from newly developed methods showed that the enamel layer can serve as effective hydrogen trapping sites to enhanced resistance of fish-scaling.