The hot working behavior of AISI 1018 steel was studied by hot-compression deformation tests on the Gleeble 1500 thermo-mechanical simulator at true strain values of -0.143 and -0.405, true strain rate values of 0.01 and 0.1, and working temperatures of 900°C and 1000°C. The tests show that a lower working temperature and lower true strain value results in a greater maximum compressive force. The apparent activation energy Qapp was calculated by using the Zener-Hollomon parameter combined with the low stress law. Qapp was calculated to be 311 kJ mol-1 K-1.
","abstract_html":"<p>The hot working behavior of AISI 1018 steel was studied by hot-compression deformation tests on the Gleeble 1500 thermo-mechanical simulator at true strain values of -0.143 and -0.405, true strain rate values of 0.01 and 0.1, and working temperatures of 900<sup>°</sup>C and 1000°C. The tests show that a lower working temperature and lower true strain value results in a greater maximum compressive force. The apparent activation energy <em>Q<sub>app</sub></em> was calculated by using the Zener-Hollomon parameter combined with the low stress law. <em>Q<sub>app</sub></em><sub> </sub>was calculated to be 311 kJ mol<sup>-1 </sup>K<sup>-1</sup>.</p>","abstract_has_math":false,"creators":["Galang, Kevin Mathew Lopez"],"institution":null,"degree_name":"MS in Biomedical Engineering","degree_level":null,"degree_discipline":"Biomedical and General Engineering","degree_department":null,"school":null,"contributors":["Dan Walsh"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2013,"date_issued":"2013-05-01T07:00:00Z","date_published":"2013-05-01T07:00:00Z","updated_at":"2026-07-24T01:32:50Z","subjects":["Hot-deformation","Gleeble","compression test","recrystallization","Zener-Hollomon Parameter","simulation of hot-working","Metallurgy","Structural Materials"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.15368/theses.2013.33"],"render_values":[{"text":"10.15368/theses.2013.33","href":"https://doi.org/10.15368/theses.2013.33","code":true}]}]},"links":{"outbound_url":"https://digitalcommons.calpoly.edu/theses/940","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Dan Walsh"]},{"key":"dc:creator","label":"Author","values":["Galang, Kevin Mathew Lopez"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2013-06-17T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Biomedical and General Engineering"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS in Biomedical Engineering"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Hot-deformation","Gleeble","compression test","recrystallization","Zener-Hollomon Parameter","simulation of hot-working","Metallurgy","Structural Materials"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.calpoly.edu/theses/940","10.15368/theses.2013.33"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The hot working behavior of AISI 1018 steel was studied by hot-compression deformation tests on the Gleeble 1500 thermo-mechanical simulator at true strain values of -0.143 and -0.405, true strain rate values of 0.01 and 0.1, and working temperatures of 900°C and 1000°C. The tests show that a lower working temperature and lower true strain value results in a greater maximum compressive force. The apparent activation energy Qapp was calculated by using the Zener-Hollomon parameter combined with the low stress law. Qapp was calculated to be 311 kJ mol-1 K-1.
"]},{"key":"dc:title","label":"Title","values":["An Experimentally Generated Constitutive Model for Peak Stress (σ_peak) in Compression Samples"]}]}],"canonical_facts":{"dc:contributor":["Dan Walsh"],"dc:creator":["Galang, Kevin Mathew Lopez"],"dc:date.available":["2013-06-17T07:00:00Z"],"dc:description.abstract":["The hot working behavior of AISI 1018 steel was studied by hot-compression deformation tests on the Gleeble 1500 thermo-mechanical simulator at true strain values of -0.143 and -0.405, true strain rate values of 0.01 and 0.1, and working temperatures of 900°C and 1000°C. The tests show that a lower working temperature and lower true strain value results in a greater maximum compressive force. The apparent activation energy Qapp was calculated by using the Zener-Hollomon parameter combined with the low stress law. Qapp was calculated to be 311 kJ mol-1 K-1.
"],"dc:identifier":["https://digitalcommons.calpoly.edu/theses/940","10.15368/theses.2013.33"],"dc:subject":["Hot-deformation","Gleeble","compression test","recrystallization","Zener-Hollomon Parameter","simulation of hot-working","Metallurgy","Structural Materials"],"dc:title":["An Experimentally Generated Constitutive Model for Peak Stress (σ_peak) in Compression Samples"],"thesis:degree_discipline":["Biomedical and General Engineering"],"thesis:degree_name":["MS in Biomedical Engineering"]},"updated_at":"2026-07-24T01:32:50Z"}