Martensitic transformation-induced hydrogen desorption characterized by utilizing cryogenic thermal desorption spectroscopy during cooling

SCRIPTA MATERIALIA

卷:122

Article

Koyama, Motomichi¹  Abe, Yuji²  Saito, Kei³  Akiyama, Eiji⁴  Takai, Kenichi⁵  Tsuzaki, Kaneaki¹ 

[1] Kyushu Univ, Fac Engn, Dept Mech Engn, Fukuoka 8190395, Japan

[2] Kyushu Univ, Grad Sch Engn, Dept Mech Engn, Fukuoka 8190395, Japan

[3] Sophia Univ, Grad Sch Sci & Technol, Tokyo 1028554, Japan

[4] Natl Inst Mat Sci, Environm & Energy Mat Div, Ibaraki 3050047, Japan

[5] Sophia Univ, Dept Engn & Appl Sci, Tokyo 1028554, Japan

关键词: Martensitic phase transformation;    Hydrogen desorption;    Cryogenic thermal desorption spectroscopy;    Austenitic steel;    Hydrogen embrittlement;   

DOI  :  10.1016/j.scriptamat.2016.05.012

来源: Elsevier

【 摘 要 】

Hydrogen desorption associated with thermally induced alpha' and epsilon martensitic transformations was characterized by cryogenic thermal desorption spectroscopy (C-TDS) during cooling. The utilization of a cooling process during C-TDS measurements revealed that the dominant factors in the hydrogen desorption related to the alpha' and epsilon martensitic transformations were local changes in diffusivity and motions of transformation dislocations, respectively. (C) 2016 Elsevier Ltd. All rights reserved.

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