Improvement of Weld Characteristics by Variation in Welding Processes and Parameters in Joining of Thick Wall 304LN Stainless Steel Pipe
スポンサーリンク
概要
- 論文の詳細を見る
Various properties of weld joints of 25 mm thick wall 325 mm O.D, 304LN austenitic stainless steel pipe prepared by using different welding process and conventional V-groove as per AWS specification have been compared. The welding was carried out by commonly used shielded metal arc welding (SMAW), gas metal arc welding (GMAW) and pulsed current gas metal arc welding (P-GMAW) processes. In P-GMAW process the influence of pulse parameters have been studied by considering their summarized influence defined by a dimensionless hypothetical factor φ = [(Ib/Ip)f·tb] where, tb = [(1/f)−tp]. The characteristics of weld joints with respect to their metallurgical, mechanical, corrosion and fracture mechanics properties as well as residual stresses have been studied and compared. Welding of thick wall stainless steel pipe by P-GMAW process significantly improves the tensile properties, reduces the inclusion and porosity content, increases initiation fracture toughness and lowers residual stresses of weld joint in comparison to those observed of SMA and GMA weld joints. The influence of φ on properties of P-GMA weld joints is primarily attributed to the reduction in severity of weld thermal cycle and refinement of microstructure of weld deposit.
- 社団法人 日本鉄鋼協会の論文
- 2008-11-15
著者
-
GHOSH Prakriti
Department of Metallurgical & Materials Engineering, Indian Institute of Technology Roorkee
-
KULKARNI Shrirang
Department of Metallurgical & Materials Engineering, Indian Institute of Technology Roorkee
-
Ghosh Prakriti
Department Of Metallurgical & Materials Engineering Indian Institute Of Technology Roorkee
-
RAY S.
Department of Metallurgical & Materials Engineering, Indian Institute of Technology Roorkee
-
Kulkarni Shrirang
Department Of Metallurgical & Materials Engineering Indian Institute Of Technology Roorkee
-
Ray S.
Dep. Of Metallurgical And Materials Engineering Indian Inst. Of Technology‐roorkee
-
Ray S.
Department Of Mechanical Engineering Jadavpur University
関連論文
- Pulsed Current GMAW for Superior Weld Quality of Austenitic Stainless Steel Sheet
- Improvement of Weld Characteristics by Variation in Welding Processes and Parameters in Joining of Thick Wall 304LN Stainless Steel Pipe
- Brazing of Ti-sputtering Activated Hot-pressed-SiN with Prior Metallized Ferritic Stainless Steel
- Influence of Geometrical Variables on Initiation Fracture Toughness (J_) of Low Carbon High Manganese SA 333 Gr. 6 Steel
- 128. Modification of Electrocerebrogam by stimulation of the Cerebellum and Hippocampus. ; A Study of Cerebello-Hippocampal Relationship
- Pulsating laminar pipe flows with sinusoidal mass flux variations
- Non-isothermal Austenitisation Kinetics and Theoretical Determination of Intercritical Annealing Time for Dual-phase Steels.