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Iikka Virkkunen
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Proceedings Papers

Effect of Welding Direction and Bead Pattern in Alloy 52 / SA508 Repair Weld

Heikki Keinänen, Juha Kuutti, Noora Hytönen, Pekka Nevasmaa, Caitlin Huotilainen, Iikka Virkkunen, Suprit Bhusare, Aloshious Lambai, Gaurav Mohanty
Proc. ASME. PVP2022, Volume 4B: Materials and Fabrication, V04BT06A053, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84662
https://doi.org/10.1115/PVP2022-84662
View Paper titled, Effect of Welding Direction and Bead Pattern in Alloy 52 / SA508 Repair Weld
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Topics: Alloys, Gas metal arc welding, Indium alloys, Maintenance, Metals, Reactor vessels, Welding
Proceedings Papers

Results of a Virtual Round Robin Study to Estimate Probability of Detection for Dissimilar Metal Welds

Ryan M. Meyer, Aimee E. Holmes, Romarie Morales, Iikka Virkkunen, Thiago Seuaciuc-Osorio, Bruce Lin
Proc. ASME. QNDE2021, 2021 48th Annual Review of Progress in Quantitative Nondestructive Evaluation, V001T14A004, July 28–30, 2021
Publisher: American Society of Mechanical Engineers
Paper No: QNDE2021-75055
https://doi.org/10.1115/QNDE2021-75055
View Paper titled, Results of a Virtual Round Robin Study to Estimate Probability of Detection for Dissimilar Metal Welds
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Topics: Metals, Nondestructive evaluation, Probability, Welded joints
Proceedings Papers

Evaluation of an Alloy 52 / Cladded Carbon Steel Repair Weld by Cold Metal Transfer

Caitlin Huotilainen, Heikki Keinänen, Juha Kuutti, Pekka Nevasmaa, Henrik Sirén, Iikka Virkkunen
Proc. ASME. PVP2021, Volume 4: Materials and Fabrication, V004T06A048, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61981
https://doi.org/10.1115/PVP2021-61981
View Paper titled, Evaluation of an Alloy 52 / Cladded Carbon Steel Repair Weld by Cold Metal Transfer
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Topics: Alloys, Carbon steel, Maintenance, Metals, Reactor vessels, Welding
Proceedings Papers

A52M/SA502 Dissimilar Metal RPV Repair Weld: Evaluation of Different Techniques

Heikki Keinänen, Pekka Nevasmaa, Juha Kuutti, Caitlin Huotilainen, Iikka Virkkunen, Mikko Peltonen, Henrik Sirén
Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A109, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21233
https://doi.org/10.1115/PVP2020-21233
View Paper titled, A52M/SA502 Dissimilar Metal RPV Repair Weld: Evaluation of Different Techniques
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Topics: Maintenance, Metals, Welding, Cladding systems (Building), Alloys, Reactor vessels, Steel, Filler metals, Heat treating (Metalworking), Nickel
Proceedings Papers

A52M/SA52 Dissimilar Metal RPV Repair Weld: Experimental Evaluation and Post-Weld Characterizations

Iikka Virkkunen, Mikko Peltonen, Henrik Sirén, Pekka Nevasmaa, Caitlin Huotilainen, Heikki Keinänen, Juha Kuutti, Aloshious Lambai, Gaurav Mohanty, Mari Honkanen
Proc. ASME. PVP2020, Volume 6: Materials and Fabrication, V006T06A110, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21236
https://doi.org/10.1115/PVP2020-21236
View Paper titled, A52M/SA52 Dissimilar Metal RPV Repair Weld: Experimental Evaluation and Post-Weld Characterizations
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Topics: Maintenance, Metals, Welding, Cracking (Materials), Fracture (Process), Reactor vessels, Alloys, Fracture (Materials), Heat, Alloy steel
Journal Articles

Surface Modification of Additively Manufactured 18% Nickel Maraging Steel by Ultrasonic Vibration-Assisted Ball Burnishing

Iñigo Flores Ituarte, Mika Salmi, Suvi Papula, Juha Huuki, Björn Hemming, Eric Coatanea, Seppo Nurmi, Iikka Virkkunen
Journal: Journal of Manufacturing Science and Engineering
Publisher: ASME
Article Type: Research Papers
J. Manuf. Sci. Eng. July 2020, 142(7): 071008.
Paper No: MANU-19-1675
https://doi.org/10.1115/1.4046903
Published Online: May 14, 2020
View Articletitled, Surface Modification of Additively Manufactured 18% Nickel Maraging Steel by Ultrasonic Vibration-Assisted Ball Burnishing
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Topics: Additive manufacturing, Hardening, Nickel, Steel, Stress, Surface roughness, Vibration, Microhardness, Springs, Compression
Proceedings Papers

Modeling of Thermal Fatigue Crack for Enhancement of Electromagnetic Nondestructive Evaluation of Nuclear Power Plant

Jing Wang, Noritaka Yusa, Hongliang Pan, Mika Kemppainen, Iikka Virkkunen, Hidetoshi Hashizume
Proc. ASME. ICONE21, Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Radiation Protection and Nuclear Technology Applications, V001T01A026, July 29–August 2, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ICONE21-16033
https://doi.org/10.1115/ICONE21-16033
View Paper titled, Modeling of Thermal Fatigue Crack for Enhancement of Electromagnetic Nondestructive Evaluation of Nuclear Power Plant
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Topics: Fatigue cracks, Modeling, Nondestructive evaluation, Nuclear power stations, Electrical conductivity, Thermal conductivity, Computer simulation, Eddies (Fluid dynamics), Eddy current testing, Eddy currents (Electricity)
Proceedings Papers

New Flaws for Qualification of Cast Stainless Steel Inspection

Iikka Virkkunen, Doug Kull, Mika Kemppainen
Proc. ASME. PVP2012, Volume 1: Codes and Standards, 313-318, July 15–19, 2012
Publisher: American Society of Mechanical Engineers
Paper No: PVP2012-78477
https://doi.org/10.1115/PVP2012-78477
View Paper titled, New Flaws for Qualification of Cast Stainless Steel Inspection
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Topics: Inspection, Stainless steel, Manufacturing, Fatigue cracks, Wall thickness, Welding, Fracture (Materials)