Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake Aging

The effects of baking on the mechanical properties and fracture characteristics of low-carbon boron (10B21) steel screws were investigated. Fracture torque tests and hydrogen content analysis were performed on baked screws to evaluate hydrogen embrittlement (HE) susceptibility. The diffusible hydrog...

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Main Authors: Kuan-Jen Chen, Fei-Yi Hung, Truan-Sheng Lui, Chien-Hao Tseng
Format: Article
Language:English
Published: MDPI AG 2016-08-01
Series:Metals
Subjects:
Online Access:http://www.mdpi.com/2075-4701/6/9/211
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author Kuan-Jen Chen
Fei-Yi Hung
Truan-Sheng Lui
Chien-Hao Tseng
author_facet Kuan-Jen Chen
Fei-Yi Hung
Truan-Sheng Lui
Chien-Hao Tseng
author_sort Kuan-Jen Chen
collection DOAJ
description The effects of baking on the mechanical properties and fracture characteristics of low-carbon boron (10B21) steel screws were investigated. Fracture torque tests and hydrogen content analysis were performed on baked screws to evaluate hydrogen embrittlement (HE) susceptibility. The diffusible hydrogen content within 10B21 steel dominated the fracture behavior of the screws. The fracture torque of 10B21 screws baked for a long duration was affected by released hydrogen. Secondary ion mass spectroscopy (SIMS) result showed that hydrogen content decreased with increasing baking duration, and thus the HE susceptibility of 10B21 screws improved. Diffusible hydrogen promoted crack propagation in high-stress region. The HE of 10B21 screws can be prevented by long-duration baking.
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spelling doaj.art-99786123b78643648c5a4bfc4e87d7252022-12-22T02:32:36ZengMDPI AGMetals2075-47012016-08-016921110.3390/met6090211met6090211Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake AgingKuan-Jen Chen0Fei-Yi Hung1Truan-Sheng Lui2Chien-Hao Tseng3Instrument Center, National Cheng Kung University, Tainan 70101, TaiwanDepartment of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, TaiwanDepartment of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, TaiwanDepartment of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, TaiwanThe effects of baking on the mechanical properties and fracture characteristics of low-carbon boron (10B21) steel screws were investigated. Fracture torque tests and hydrogen content analysis were performed on baked screws to evaluate hydrogen embrittlement (HE) susceptibility. The diffusible hydrogen content within 10B21 steel dominated the fracture behavior of the screws. The fracture torque of 10B21 screws baked for a long duration was affected by released hydrogen. Secondary ion mass spectroscopy (SIMS) result showed that hydrogen content decreased with increasing baking duration, and thus the HE susceptibility of 10B21 screws improved. Diffusible hydrogen promoted crack propagation in high-stress region. The HE of 10B21 screws can be prevented by long-duration baking.http://www.mdpi.com/2075-4701/6/9/211low-carbon boron steelhydrogen embrittlementbakingsecondary ion mass spectroscopy
spellingShingle Kuan-Jen Chen
Fei-Yi Hung
Truan-Sheng Lui
Chien-Hao Tseng
Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake Aging
Metals
low-carbon boron steel
hydrogen embrittlement
baking
secondary ion mass spectroscopy
title Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake Aging
title_full Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake Aging
title_fullStr Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake Aging
title_full_unstemmed Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake Aging
title_short Decrease in Hydrogen Embrittlement Susceptibility of 10B21 Screws by Bake Aging
title_sort decrease in hydrogen embrittlement susceptibility of 10b21 screws by bake aging
topic low-carbon boron steel
hydrogen embrittlement
baking
secondary ion mass spectroscopy
url http://www.mdpi.com/2075-4701/6/9/211
work_keys_str_mv AT kuanjenchen decreaseinhydrogenembrittlementsusceptibilityof10b21screwsbybakeaging
AT feiyihung decreaseinhydrogenembrittlementsusceptibilityof10b21screwsbybakeaging
AT truanshenglui decreaseinhydrogenembrittlementsusceptibilityof10b21screwsbybakeaging
AT chienhaotseng decreaseinhydrogenembrittlementsusceptibilityof10b21screwsbybakeaging