Selective Laser Melting of Duplex Stainless Steel 2205: Effect of Post-Processing Heat Treatment on Microstructure, Mechanical Properties, and Corrosion Resistance

Autor: Suvi Papula, Mingshi Song, Aaron Pateras, Xiao-Bo Chen, Milan Brandt, Mark Easton, Yuriy Yagodzinskyy, Iikka Virkkunen, Hannu Hänninen

Publikováno v: Materials, Vol 12, Iss 15, p 2468 (2019)

Additive manufacturing (AM) is a rapidly growing field of technology. In order to increase the variety of metal alloys applicable for AM, selective laser melting (SLM) of duplex stainless steel 2205 powder and the resulting microstructure, density, m

Externí odkaz: https://doaj.org/article/9979cbdbfa9b495ebad06d1607d19811

Surface modification of additively manufactured 18% nickel maraging steel by ultrasonic vibration-assisted ball burnishing

Autor: Mika Salmi, Seppo Nurmi, Iñigo Flores Ituarte, Eric Coatanéa, Iikka Virkkunen, Björn Hemming, Juha Huuki, Suvi Papula

Publikováno v: Ituarte, I F, Salmi, M, Papula, S, Huuki, J, Hemming, B, Coatanea, E, Nurmi, S & Virkkunen, I 2020, ' Surface modification of additively manufactured 18% nickel maraging steel by ultrasonic vibration-assisted ball burnishing ', Journal of Manufacturing Science and Engineering, Transactions of the ASME, vol. 142, no. 7, 4046903 . https://doi.org/10.1115/1.4046903
Ituarte, I F, Salmi, M, Papula, S, Huuki, J, Hemming, B, Coatanea, E, Nurmi, S & Virkkunen, I 2020, ' Surface modification of additively manufactured 18% nickel maraging steel by ultrasonic vibration-assisted ball burnishing ', Journal of Manufacturing Science and Engineering, vol. 142, no. 7, 4046903 . https://doi.org/10.1115/1.4046903

The scope of this research is to characterize and optimize the vibration-assisted ball burnishing of additively manufactured 18% Nickel Maraging steel for tooling applications. We evaluate the suitability of vibration-assisted ball burnishing as an a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbdea624d9e126450ba6980ece1ba286
https://vbn.aau.dk/da/publications/ce259b54-098e-4e6d-ba9c-eef67ae42f5a

Comparison of â Versus a and Hit/Miss POD-Estimation Methods: A European Viewpoint

Autor: Teemu Sarikka, Tuomas Koskinen, Suvi Papula, Hannu Hänninen, Iikka Virkkunen

Publikováno v: Virkkunen, I, Koskinen, T, Papula, S, Sarikka, T & Hänninen, H 2019, ' Comparison of â Versus a and Hit/Miss POD-Estimation Methods : A European Viewpoint ', Journal of Nondestructive Evaluation, vol. 38, no. 4, 89 . https://doi.org/10.1007/s10921-019-0628-z

For estimating the probability of detection (POD) in non-destructive evaluation (NDE), there are two standard methods, the so-called â versus a approach and the hit/miss approach. The two approaches have different requirements for the quality and qu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c291e179e4e95f1ae9ce9810a0d15953
https://doi.org/10.1007/s10921-019-0628-z

Delayed cracking of low-nickel austenitic stainless steel studied with constant load tensile testing

Autor: Hannu Hänninen, Suvi Papula, Juho Talonen

Publikováno v: Fatigue & Fracture of Engineering Materials & Structures. 38:1219-1227

Delayed cracking in unstable low-Ni austenitic stainless steel 204Cu was studied by constant load tensile testing. The developed testing arrangement enabled a systematical examination on the effect of applied stress, strain-induced α′-martensite a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0140284fa9d23da40b18ac2e7bb916a9
https://doi.org/10.1111/ffe.12301

Hydrogen-Induced Delayed Cracking in TRIP-Aided Lean-Alloyed Ferritic-Austenitic Stainless Steels

Autor: Severi Anttila, Hannu Hänninen, Teemu Sarikka, Iikka Virkkunen, Juho Talonen, Suvi Papula

Publikováno v: Materials; Volume 10; Issue 6; Pages: 613
Materials, Vol 10, Iss 6, p 613 (2017)
Materials

Susceptibility of three lean-alloyed ferritic-austenitic stainless steels to hydrogen-induced delayed cracking was examined, concentrating on internal hydrogen contained in the materials after production operations. The aim was to study the role of s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::987bd0f3d3d24727545b3906f3620703