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      용접조건에 따른 고장력강 용접부의 기계적 성질 및 수소유기 응력부식귀열 (應力腐食龜裂) 저항성 변화 = Effect of Welding Condition on the Mechanical Properties and HISCC Resistance of High Strength Steel Weldment

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      https://www.riss.kr/link?id=A3232388

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      다국어 초록 (Multilingual Abstract)

      The effect of welding condition on mechanical properties and Hydrogen Induced Stress Corrosion Cracking (HISCC) resistance of Heat Affected Zone (HAZ) in high strength steel weldment was studied. Multi-pass Submerged Arc Welding of A5l6 Grade 70 steel plate with different heat input of 30, 40, 50 KJ/㎝ were carried out, which were followed by Post Weld Heat Treatment (PWHT) for 2 hrs at 630 ℃. As the heat input during welding was increased, the impact energy and hardness at HAZ were decreased, on the other hand, the hardness was decreased and both the impact energy and the resistance of HISCC were increased. With proper selection of welding heat input and PWHT, better results of the resistance of HISCC and Charpy V notch impact energy of HAZ can be obtained.
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      The effect of welding condition on mechanical properties and Hydrogen Induced Stress Corrosion Cracking (HISCC) resistance of Heat Affected Zone (HAZ) in high strength steel weldment was studied. Multi-pass Submerged Arc Welding of A5l6 Grade 70 steel...

      The effect of welding condition on mechanical properties and Hydrogen Induced Stress Corrosion Cracking (HISCC) resistance of Heat Affected Zone (HAZ) in high strength steel weldment was studied. Multi-pass Submerged Arc Welding of A5l6 Grade 70 steel plate with different heat input of 30, 40, 50 KJ/㎝ were carried out, which were followed by Post Weld Heat Treatment (PWHT) for 2 hrs at 630 ℃. As the heat input during welding was increased, the impact energy and hardness at HAZ were decreased, on the other hand, the hardness was decreased and both the impact energy and the resistance of HISCC were increased. With proper selection of welding heat input and PWHT, better results of the resistance of HISCC and Charpy V notch impact energy of HAZ can be obtained.

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      목차 (Table of Contents)

      • 1. 서론
      • 2. 실험방법
      • 3. 결과 및 고찰
      • 4. 결론
      • 1. 서론
      • 2. 실험방법
      • 3. 결과 및 고찰
      • 4. 결론
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