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Quarterly Journal of The Japan Welding Society | 1991

Weld crack susceptibility of duplex stainless steel. (Report VI). Effects of nitrogen and molybdenum on weld solidification crack susceptibility.

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee; Yasuhiro Nishio

Weld solidification crack susceptibility and pitting corrosion resistance of tentative duplex stainless steels were investigated in order to decrease the crack susceptibility without decreasing the corrosion resistance in a duplex stainless steel. The results obtained are as follows:(1) Crack susceptibility was improved with decreasing the N content in 22 to 25Cr-1 to 10Ni duplex stainless steels, but was not considerably changed with increasing the Mo content up to 4.5% at constant level of 0.03%N.(2) Corrosion resistance was improved with increasing the Mo content at constant level of 0.03%N.As a result, it was suggested that a lower N and Mo in the range of 4.0 to 4.5% were very effective for the development of a duplex stainless steel which had the low crack susceptibility without decreasing the corrosion resistance.


Quarterly Journal of The Japan Welding Society | 1991

Weld crack susceptibility of duplex stainless steel (Report IV). Numerical analysis on microsegregation during weld solidification.

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee


Quarterly Journal of The Japan Welding Society | 1991

Weld crack susceptibility of duplex stainless steel. (Report V). Numerical analysis on solidification brittleness temperature range in stainless steel.

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee


Quarterly Journal of The Japan Welding Society | 1989

Weld Crack susceptibility of duplex stainless steels. (Report II). Solidification sequence of austenitic stainless steels revealed by liquid-tin quenching.

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee


Transactions of the Japan Welding Society | 1992

Numerical Analysis on Solidification Brittleness Temperature Range in Stainless Steel : Weld Crack Susceptibility of Duplex Stainless Steel (Report V)

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee; Yasuhiro Nishio


Quarterly Journal of The Japan Welding Society | 1989

Weld crack susceptibility of duplex stainless steels. (Report III). Solidification sequence of ferritic and duplex stainless steels revealed by liquid-tin quenching.:Weld Crack Susceptibility of Duplex Stainless Steels (Report III)

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee


Transactions of JWRI | 1989

Weld Cracking in Duplex Stainless Steel (Report III) : Numerical Analysis on Solidification Brittleness Temperature Range in Stainless Steel(Materials, Metallurgy & Weldability)

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee


Transactions of JWRI | 1989

Weld Cracking in Duplex Stainless Steel (Report II) : Modelling of Cellular Dendritic Growth during Weld Solidification(Materials, Metallurgy & Weldability)

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee


Pre-Prints of the National Meeting of JWS | 1988

Calculation of BTR in Austenitic and Ferritic Stainless Steels by a Two -Dimensional Difference Method : Weld Crack Susceptibility of Dupulex Stainless Steel (Report III)

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee


Transactions of JWRI | 1987

Measurements of Carbon Content in M-A Constituent in HAZ of High Strength Steel Welds

Fukuhisa Matsuda; Hiroji Nakagawa; Jong-Bong Lee

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