{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/72626"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/72626","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Embrittlement of Austenitic Stainless Steels by Solute Hydrogen","abstract":"Mechanical properties of austenitic stainless steel were determined as a function of solute hydrogen concentration. Twenty micron thick foils of types 310s and 304 stainless steel were cathodically precharged to saturation and tested in tension at room temperature. X-ray diffraction experiments were performed to measure the lattice strains produced by the interstitial hydrogen and to identify any hydrogen induced phase transformations which might occur.","abstract_html":"Mechanical properties of austenitic stainless steel were determined as a function of solute hydrogen concentration. Twenty micron thick foils of types 310s and 304 stainless steel were cathodically precharged to saturation and tested in tension at room temperature. X-ray diffraction experiments were performed to measure the lattice strains produced by the interstitial hydrogen and to identify any hydrogen induced phase transformations which might occur.","abstract_has_math":false,"creators":["Ulmer, Donald George"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Metallurgical Engineering","degree_department":null,"school":null,"contributors":["Altstetter, Carl J."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1988,"date_issued":"1988","date_published":"1988","updated_at":"2026-07-22T22:26:07Z","subjects":["Engineering, Metallurgy"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI8908877"],"render_values":[{"text":"(UMI)AAI8908877","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/72626","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Altstetter, Carl J."]},{"key":"dc:creator","label":"Author","values":["Ulmer, Donald George"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1988","2014-12-17T23:58:29Z","10000-01-01"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Metallurgical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engineering, Metallurgy"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/72626","(UMI)AAI8908877"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Mechanical properties of austenitic stainless steel were determined as a function of solute hydrogen concentration. Twenty micron thick foils of types 310s and 304 stainless steel were cathodically precharged to saturation and tested in tension at room temperature. X-ray diffraction experiments were performed to measure the lattice strains produced by the interstitial hydrogen and to identify any hydrogen induced phase transformations which might occur.","A hydrogen embrittlement was proposed based on the locking of dislocations by hydrogen atmospheres. Hydrogen causes an increase in the yield and fracture stresses in the austenitic stainless steels. Hydrogen also causes planar slip needed for large dislocation pile-ups by limiting the number of active dislocation sources. The hydrogen atmospheres assist in blocking the Frank-Read sources near the pile-up and thereby prevent relief of the stress by dislocation movement. This would result in a brittle type fracture.","Made available in DSpace on 2014-12-17T23:58:29Z (GMT). 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Twenty micron thick foils of types 310s and 304 stainless steel were cathodically precharged to saturation and tested in tension at room temperature. X-ray diffraction experiments were performed to measure the lattice strains produced by the interstitial hydrogen and to identify any hydrogen induced phase transformations which might occur.","A hydrogen embrittlement was proposed based on the locking of dislocations by hydrogen atmospheres. Hydrogen causes an increase in the yield and fracture stresses in the austenitic stainless steels. Hydrogen also causes planar slip needed for large dislocation pile-ups by limiting the number of active dislocation sources. The hydrogen atmospheres assist in blocking the Frank-Read sources near the pile-up and thereby prevent relief of the stress by dislocation movement. This would result in a brittle type fracture.","Made available in DSpace on 2014-12-17T23:58:29Z (GMT). No. of bitstreams: 1 8908877.pdf: 4166684 bytes, checksum: 04059f0c0509f7c75ce551473dc63b64 (MD5) Previous issue date: 1988","Embargo set by: Seth Robbins for item 72794 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","95 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1988."],"dc:identifier":["http://hdl.handle.net/2142/72626","(UMI)AAI8908877"],"dc:subject":["Engineering, Metallurgy"],"dc:title":["Embrittlement of Austenitic Stainless Steels by Solute Hydrogen"],"dc:type":["text"],"thesis:degree_discipline":["Metallurgical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:07Z"}