Luis Straßberger
Karlsruhe Institute of Technology
Ultimate tensile strengthDeformation (engineering)DislocationComposite materialTensile testingIntergranular corrosionHardening (metallurgy)MetallurgyMaterials scienceStress relaxationLaves phaseLow-cycle fatigueOxideMicrostructural evolutionSlip bandTotal strainCyclic responseGrain boundaryCyclic stressStrain (chemistry)Equiaxed crystalsMicrostructureAusteniteToughness
4Publications
4H-index
42Citations
Publications 4
Newest
#1Ankur Chauhan (KIT: Karlsruhe Institute of Technology)H-Index: 9
#2Luis Straßberger (KIT: Karlsruhe Institute of Technology)H-Index: 4
Last. Jarir Aktaa (KIT: Karlsruhe Institute of Technology)H-Index: 25
view all 5 authors...
Abstract The present study reports on the creep-fatigue (CF) behavior of a ferritic bimodal 12Cr-ODS steel. The tests were performed in air at 550 °C and 650 °C by introducing hold-time at peak tensile, peak compressive and both peak tensile as well as compressive strains of ±0.5%. The symmetrical loops under pure fatigue/continuous cycling (CC) became asymmetrical upon introducing hold-time at either peak tensile or peak compressive strain. On the contrary, hold-time on both sides had no influe...
10 CitationsSource
#1Luis Straßberger (KIT: Karlsruhe Institute of Technology)H-Index: 4
#2Ankur Chauhan (KIT: Karlsruhe Institute of Technology)H-Index: 9
Last. Jarir Aktaa (KIT: Karlsruhe Institute of Technology)H-Index: 25
view all 4 authors...
Abstract The aim of this work is to investigate the low-cycle fatigue (LCF) behavior of a ferritic-martensitic (F/M) oxide dispersion strengthened (ODS) steel based on commercial T91 (mod. 9Cr-1Mo steel) and to correlate it to the microstructural evolution after cyclic straining at different temperatures. Therefore, LCF tests were performed at temperature between 500 and 650 °C with strain amplitudes ranging from ± 0.4 to ± 0.9 % . Cyclic stress response and cyclic strain-life resistance were an...
7 CitationsSource
#1Luis Straßberger (KIT: Karlsruhe Institute of Technology)H-Index: 4
#2Ankur Chauhan (KIT: Karlsruhe Institute of Technology)H-Index: 9
Last. Jarir Aktaa (KIT: Karlsruhe Institute of Technology)H-Index: 25
view all 5 authors...
Abstract The focus of this study is to investigate the low-cycle fatigue (LCF) behavior of two newly developed austenitic 17Cr13Ni–W ODS steels. The LCF tests were performed at 650 °C with strain amplitudes ranging from 0.4 to 0.9%. The cyclic stress response and the cyclic strain-life resistance were analyzed in detail and compared with two non-ODS austenitic stainless steels (304 and 316L(N)) and a ferritic-martensitic ODS steel based on T91. The austenitic ODS steels showed stabilized cyclic ...
14 CitationsSource
#1Luis Straßberger (KIT: Karlsruhe Institute of Technology)H-Index: 4
#2Dimitri Litvinov (KIT: Karlsruhe Institute of Technology)H-Index: 22
Last. Jarir Aktaa (KIT: Karlsruhe Institute of Technology)H-Index: 25
view all 3 authors...
In the present work, high temperature deformation behavior of oxide dispersion strengthened T91 was investigated and linked to the corresponding microstructure. First, tensile properties are presented and discussed in terms of yield strength, tensile stress and total elongation as a function of temperature. The results are compared to the matrix material and other ODS alloys. Second, transmission electron microscopy was applied to as received and deformed tensile test specimens. It is shown that...
9 CitationsSource