A Study on Transverse Weld Cracks in 50 mm Thick Steel Plate with SAW Process.

DOI Web Site 参考文献16件
  • LEE Hae-Woo
    Samsung Heavy Industries Co. Welding Research Team, Korea
  • KANG Sung-Won
    Research Institute of Mechanical Technology, Pusan National Univ., Korea

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  • Study on Transverse Weld Cracks in 50mm

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This paper was studied in order to clarify the form and position of transverse crack under actual construction condition with SAW (Submerged Arc Welding) process.<BR>In recent years many of the new steel, such as TMCP (Thermo-Mechanical Controlled Process) steel, developments have been intended to improve weldability. TMCP steel have been used achieve high strength with lean compositions, the weld metal is more likely to suffer hydrogen cracking than the HAZ of the parent steel.<BR>Weld metal hydrogen cracking is even more likely if alloying is necessary to match the strength and toughness of the parent metal. This is primarily due to the increased susceptibility to hydrogen cracking of more highly alloyed weld metal.<BR>But most of the published literature on transverse cracks, so far, different compared to the appearance of transverse crack in actual construction.<BR>The reason is a large restraint stress under actual construction compared to a small test piece.

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