Search Results - "Suikkanen, Pasi"

Effect of austenite grain structure on the strength and toughness of direct-quenched martensite by Kaijalainen, Antti J., Suikkanen, Pasi P., Limnell, Teijo J., Karjalainen, Leo P., Kömi, Jukka I., Porter, David A.

“…► Austenite pancaking is an effective way to improve the strength and toughness. ► Austenite pancaking decreases the volume fraction of martensite. ►…”
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Laser-arc hybrid welding of 12- and 15-mm thick structural steel by Bunaziv, Ivan, Dørum, Cato, Nielsen, Steen Erik, Suikkanen, Pasi, Ren, Xiaobo, Nyhus, Bård, Eriksson, Magnus, Akselsen, Odd M.

“…High-power lasers are very effective in welding of plates thicker than 10 mm due to the keyhole mode. High-power intensity generates a vapor-filled cavity…”
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Root formation and metallurgical challenges in laser beam and laser-arc hybrid welding of thick structural steel by Bunaziv, Ivan, Dørum, Cato, Nielsen, Steen Erik, Suikkanen, Pasi, Ren, Xiaobo, Nyhus, Bård, Eriksson, Magnus, Akselsen, Odd M.

“…Single-pass laser beam welding (LBW) of steel components with wall thickness of > 10 mm is of high interest due to enhanced productivity. Deep penetration LBW…”
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Crystallographic Analysis of Martensite in 0.2C-2.0Mn-1.5Si-0.6Cr Steel using EBSD by Suikkanen, Pasi P., Cayron, Cyril, DeArdo, Anthony J., Karjalainen, L. Pentti

“…The crystallography of martensite formed in 0.2C-2.0Mn-1,5Si-0.6Cr steel was studied using the electron backscattered diffraction （EBSD） technique. The results…”
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Crystallographic Analysis of Isothermally Transformed Bainite in 0.2C–2.0Mn–1.5Si–0.6Cr Steel Using EBSD by Suikkanen, Pasi P., Cayron, Cyril, DeArdo, Anthony J., Karjalainen, L. Pentti

“…The crystallography of bainite, transformed isothermally at 450 °C in 0.2C–2.0Mn–1.5Si–0.6Cr steel, was investigated by electron backscatter diffraction (EBSD)…”
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Effect of Silicon and Aluminium on Austenite Static Recrystallization Kinetics in High-strength TRIP-aided Steels by Suikkanen, Pasi Pekka, Lang, Visa Tatu Emil, Somani, Mahesh Chandra, Porter, David Arthur, Karjalainen, Leo Pentti

“…High-strength transformation-induced-plasticity steels contain high concentrations of silicon or aluminium or a combination of the two. The effects of up to…”
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Effects of Carbon Content and Cooling Path on the Microstructure and Properties of TRIP-aided Ultra-High Strength Steels by Suikkanen, Pasi Pekka, Ristola, Antti-Jussi, Hirvi, Ari Mikael, Sahu, Puspendu, Somani, Mahesh Chandra, Porter, David Arthur, Karjalainen, Leo Pentti

“…The effects of carbon content in the range 0.2–0.4 wt% and thermomechanical treatment parameters on the mechanical properties and microstructures of steels…”
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The effect of tempering temperature on microstructure, mechanical properties and bendability of direct-quenched low-alloy strip steel by Saastamoinen, Ari, Kaijalainen, Antti, Heikkala, Jouko, Porter, David, Suikkanen, Pasi

“…The tempering of re-austenized, quenched and tempered (RAQT) martensitic steels is an extensively studied and well understood field of metallurgy. However, a…”
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The effect of finish rolling temperature and tempering on the microstructure, mechanical properties and dislocation density of direct-quenched steel by Saastamoinen, Ari, Kaijalainen, Antti, Porter, David, Suikkanen, Pasi, Yang, Jer-Ren, Tsai, Yu-Ting

“…A unique batch tempering treatment for industrial scale direct-quenched steel coils has been studied using laboratory simulations. The tempering treatment was…”
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The effect of thermomechanical treatment and tempering on the subsurface microstructure and bendability of direct-quenched low-carbon strip steel by Saastamoinen, Ari, Kaijalainen, Antti, Porter, David, Suikkanen, Pasi

“…Recent results in the literature have shown that subsurface properties play a key role during the bending of steel plates. Now, for the first time, surface…”
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Direct-quenched and tempered low-C high-strength structural steel: The role of chemical composition on microstructure and mechanical properties by Saastamoinen, Ari, Kaijalainen, Antti, Nyo, Tun Tun, Suikkanen, Pasi, Porter, David, Kömi, Jukka

“…The direct quenching of low-carbon steels after thermomechanical processing on hot strip mills is able to produce both strong and tough coiled plate without…”
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Harmonization and improvement of fracture mechanical design codes for steel constructions by Wallin, Kim, Karjalainen-Roikonen, Päivi, Suikkanen, Pasi

“…•We used fracture mechanics to estimate impact toughness requirement influence factors qi.•The influence factors are in line with the Eurocode 3 standard…”
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Fracture properties of high performance steels and their welds by Wallin, Kim, Pallaspuro, Sakari, Valkonen, Ilkka, Karjalainen-Roikonen, Päivi, Suikkanen, Pasi

“…•The Master Curve applies for Ultra High Strength Steels (UHSS).•The statistical size effect is present also with UHSS materials.•UHSS welds behave like normal…”
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Effect of Austenite Pancaking on the Microstructure, Texture, and Bendability of an Ultrahigh-Strength Strip Steel by Kaijalainen, Antti Juhani, Suikkanen, Pasi, Karjalainen, L. Pentti, Jonas, John J.

“…The effect of austenite pancaking in the non-recrystallization regime on microstructure and texture evolution and thereby on bendability was investigated in an…”
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Effect of Boron on the Strength and Toughness of Direct-Quenched Low-Carbon Niobium Bearing Ultra-High-Strength Martensitic Steel by Hannula, Jaakko, Kömi, Jukka, Porter, David A., Somani, Mahesh C., Kaijalainen, Antti, Suikkanen, Pasi, Yang, Jer-Ren, Tsai, Shao-Pu

“…The effect of boron on the microstructures and mechanical properties of laboratory-control-rolled and direct-quenched 6-mm-thick steels containing 0.08 wt pct…”
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13.07: Extension of EN 1993‐1‐10 and EN 1993‐1‐12: To higher strengths and thinner sections by Wallin, Kim, Karjalainen‐Roikonen, Päivi, Suikkanen, Pasi

“…ABSTRACT The Eurocode 3 sections EN 1993‐1‐10 and EN 1993‐1‐12 contain tables for the maximum permissible values of element thickness as a function of steel…”
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Crystallographic Analysis of Isothermally Transformed Bainite in 0.2C-2.0Mn-1.55Si-0.6Cr Steel Using EBSD by Pasi P. Suikkanen Cyril Cayron Anthony J. DeArdo L. Pentti Karjalainen

“…The crystallography of bainite, transformed isothermally at 450 ℃ in 0.2C-2.0Mn-1.5Si-0.6Cr steel, was investigated by electron backscatter diffraction （EBSD）…”
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