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Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir

In this paper the effect of hydrogen charged SUS304L deep drawn cylindrical cups under elevated blank holding forces are investigated. A round SUS 304L blanks was deep drawn at 8, 9, 10 and 11 kN blank holding force, BHF using a die, after the specimens were hydrogen charged for 6, 12, and 24 hours...

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Main Author: Mohd Shahir, Hadzir
Format: Thesis
Published: 2022
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://studentsrepo.um.edu.my/13615/1/Mohd_Shahir_Hadzir.jpg
http://studentsrepo.um.edu.my/13615/8/shahir.pdf
http://studentsrepo.um.edu.my/13615/
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spelling my.um.stud.136152022-08-16T23:05:36Z Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir Mohd Shahir, Hadzir TJ Mechanical engineering and machinery In this paper the effect of hydrogen charged SUS304L deep drawn cylindrical cups under elevated blank holding forces are investigated. A round SUS 304L blanks was deep drawn at 8, 9, 10 and 11 kN blank holding force, BHF using a die, after the specimens were hydrogen charged for 6, 12, and 24 hours in 1N of H2SO4 and As2O3 solution. It was found that the hydrogen charging of deep drawn cups has resulted in an accelerated appearance of the delayed cracks on the SUS 304L blanks. The 6 hours charged specimen was also deep drawn again using TiN coated die at 7, 10 and 12 kN of BHF, and it was found that delayed cracks still occur, but did not develop as fast as using uncoated die. Understanding the effect blank holding force with hydrogen towards the SUS304L will allow better understanding of the steel characteristic for future application. 2022-03 Thesis NonPeerReviewed application/pdf http://studentsrepo.um.edu.my/13615/1/Mohd_Shahir_Hadzir.jpg application/pdf http://studentsrepo.um.edu.my/13615/8/shahir.pdf Mohd Shahir, Hadzir (2022) Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir. Masters thesis, Universiti Malaya. http://studentsrepo.um.edu.my/13615/
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Student Repository
url_provider http://studentsrepo.um.edu.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Mohd Shahir, Hadzir
Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir
description In this paper the effect of hydrogen charged SUS304L deep drawn cylindrical cups under elevated blank holding forces are investigated. A round SUS 304L blanks was deep drawn at 8, 9, 10 and 11 kN blank holding force, BHF using a die, after the specimens were hydrogen charged for 6, 12, and 24 hours in 1N of H2SO4 and As2O3 solution. It was found that the hydrogen charging of deep drawn cups has resulted in an accelerated appearance of the delayed cracks on the SUS 304L blanks. The 6 hours charged specimen was also deep drawn again using TiN coated die at 7, 10 and 12 kN of BHF, and it was found that delayed cracks still occur, but did not develop as fast as using uncoated die. Understanding the effect blank holding force with hydrogen towards the SUS304L will allow better understanding of the steel characteristic for future application.
format Thesis
author Mohd Shahir, Hadzir
author_facet Mohd Shahir, Hadzir
author_sort Mohd Shahir, Hadzir
title Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir
title_short Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir
title_full Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir
title_fullStr Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir
title_full_unstemmed Study of delayed cracking behaviors of hydrogen-charged SUS304L deep drawn cylindrical cups under elevated blank holding forces / Mohd Shahir Hadzir
title_sort study of delayed cracking behaviors of hydrogen-charged sus304l deep drawn cylindrical cups under elevated blank holding forces / mohd shahir hadzir
publishDate 2022
url http://studentsrepo.um.edu.my/13615/1/Mohd_Shahir_Hadzir.jpg
http://studentsrepo.um.edu.my/13615/8/shahir.pdf
http://studentsrepo.um.edu.my/13615/
_version_ 1743107398450544640
score 13.211869

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