Hydrogen Embrittlement of AISI 403 Stainless Steel
碩士 === 國立臺灣海洋大學 === 材料工程研究所 === 93 === The aim of this work is to study the effect of cold work on hydrogen embrittlement and mechanical in AISI 403 stainless steel. Hydrogen embrittlement of as received, 10% and 20% cold worked AISI 403 stainless steel has been evaluated by using electrochemical pe...
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ndltd-TW-093NTOU51590092016-06-01T04:25:06Z http://ndltd.ncl.edu.tw/handle/50957527070156974501 Hydrogen Embrittlement of AISI 403 Stainless Steel AISI403不�袗�之抗氫脆性研究 Chia-Po Hung 洪佳博 碩士 國立臺灣海洋大學 材料工程研究所 93 The aim of this work is to study the effect of cold work on hydrogen embrittlement and mechanical in AISI 403 stainless steel. Hydrogen embrittlement of as received, 10% and 20% cold worked AISI 403 stainless steel has been evaluated by using electrochemical permeation measurement and tensile test in this study. For electrochemical permeation measurement, it is known that hydrogen effective diffusivity and permeation rate increase with increase cold work. Cold may cause some micro-crack in microstructure, thus resulting in the high rate of hydrogen permeation. For slow train rate tests, the ultimate tensile strength increase with the amount of cold work, while elongation decrease with cold work. After hydrogen charging, hydrogen diffused into the the microstructure, resulting the elongation decayed significantly. The fractography of precharged specimens shows that the ductile fracture has changed to the brittle fracture, and some hydrogen-assisted secondary cracks were also observed in the specimens. J. K. Wu 吳建國 2005 學位論文 ; thesis 75 zh-TW |
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碩士 === 國立臺灣海洋大學 === 材料工程研究所 === 93 === The aim of this work is to study the effect of cold work on hydrogen embrittlement and mechanical in AISI 403 stainless steel. Hydrogen embrittlement of as received, 10% and 20% cold worked AISI 403 stainless steel has been evaluated by using electrochemical permeation measurement and tensile test in this study.
For electrochemical permeation measurement, it is known that hydrogen effective diffusivity and permeation rate increase with increase cold work. Cold may cause some micro-crack in microstructure, thus resulting in the high rate of hydrogen permeation.
For slow train rate tests, the ultimate tensile strength increase with the amount of cold work, while elongation decrease with cold work. After hydrogen charging, hydrogen diffused into the the microstructure, resulting the elongation decayed significantly. The fractography of precharged specimens shows that the ductile fracture has changed to the brittle fracture, and some hydrogen-assisted secondary cracks were also observed in the specimens.
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author2 |
J. K. Wu |
author_facet |
J. K. Wu Chia-Po Hung 洪佳博 |
author |
Chia-Po Hung 洪佳博 |
spellingShingle |
Chia-Po Hung 洪佳博 Hydrogen Embrittlement of AISI 403 Stainless Steel |
author_sort |
Chia-Po Hung |
title |
Hydrogen Embrittlement of AISI 403 Stainless Steel |
title_short |
Hydrogen Embrittlement of AISI 403 Stainless Steel |
title_full |
Hydrogen Embrittlement of AISI 403 Stainless Steel |
title_fullStr |
Hydrogen Embrittlement of AISI 403 Stainless Steel |
title_full_unstemmed |
Hydrogen Embrittlement of AISI 403 Stainless Steel |
title_sort |
hydrogen embrittlement of aisi 403 stainless steel |
publishDate |
2005 |
url |
http://ndltd.ncl.edu.tw/handle/50957527070156974501 |
work_keys_str_mv |
AT chiapohung hydrogenembrittlementofaisi403stainlesssteel AT hóngjiābó hydrogenembrittlementofaisi403stainlesssteel AT chiapohung aisi403bùzhěnzhīkàngqīngcuìxìngyánjiū AT hóngjiābó aisi403bùzhěnzhīkàngqīngcuìxìngyánjiū |
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