Four　types　of　iron-chromium-aluminum　(FeCrAl)　alloys,　composed　of　different　elements,　were　used　to　investigate　the　creep　performance　and　high-temperature　oxidation　resistance.　The　microstructures　in　the　undeformed　regions　after　the　small　punch　creep　test　(SPCT)　remained　consistent　with　the　as-received　(AR)　FeCrAl　alloys,　while　the　grain　aspect　ratio　(GAR)　decreased　and　grains　elongated　in　the　deformed　regions.　Amongst　the　four　alloys,　Q1　exhibited　the　worst　oxidation　resistance,　whereas　Q4　showed　superior　oxidation　resistance　due　to　the　addition　of　Si.　Precipitates　were　observed　in　the　deformed　regions　after　SPCT　but　not　in　undeformed　regions,　indicating　that　deformation　had　a　positive　effect　on　element　segre-gation.　Creep　models　including　Norton　power　law,　Monkman-Grant　relationship,　Larson-Miller　Parameters,　and　Fracture-Time　law　were　obtained.　Calculation　results　from　these　creep　models　revealed　that　under　low　loads　Q4　had　lower　minimum　creep　rate　/3m　and　longer　creep　fracture　time　tr　compared　to　other　alloys;　however,　Q3　demonstrated　better　perfor-mance　in　terms　of　/3m　and　tr　under　high　loads.　This　suggests　a　strong　correlation　between　creep　performance　and　loads.　Additionally,　finite　element　method　(FEM)　was　employed　to　explore　the　effects　of　minor　variation　(+/-　0.005　mm)　in　specimen　thickness　on　SPT　curves　and　SPCT　curves.　FEM　results　indicated　that　this　slight　variation　alone　did　not　account　for　discrepancies　observed　in　load-deflection　curves;　deviations　of　+/-　6.1%　for　/3m　and　+/-　6.3%　for　tr　were　found　corresponding　to　specimens　with　0.5　+/-　0.005　mm　thickness.(c)　2023　The　Author(s).　Published　by　Elsevier　B.V.　This　is　an　open　access　article　under　the　CC　BY-NC-ND　license　(http://creativecommons.org/licenses/by-nc-nd/4.0/).