scholarly journals Effect of Post-Weld Heat Treatment Temperature on the Mechanical Properties and Microstructure of Carbon Steel Base Metal

2021 ◽  
Author(s):  
Yongjoon Kang ◽  
Chang-Young Oh ◽  
Seung-Gun Lee ◽  
Sanghoon Lee ◽  
Sung-Sik Kang
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Carbon Steel ◽  
Base Metal ◽  
Heat Treatment Temperature ◽  
Treatment Temperature ◽  
Post Weld Heat Treatment ◽  
Steel Base ◽  
Weld Heat

Effect of Post Weld Heat Treatment on Carbon Steel AISI 1050 in Heat Effected Zone

2013 ◽  
Vol 650 ◽  
pp. 612-615
Author(s):  
Prachya Peasura ◽  
Lersak Sumarn
Keyword(s):  
Heat Treatment ◽  
Carbon Steel ◽  
Treatment Time ◽  
Treatment Temperature ◽  
Post Weld Heat Treatment ◽  
Heat Treatment Time ◽  
P Value ◽  
Fine Grain ◽  
Steel Aisi ◽  
Weld Heat

The research was study the effect of post weld heat treatment parameters on microstructure and hardness in heat affected zone. The specimen was carbon steel AISI 1050 which thickness of 6 mm. The experiments with full factorial design. The factors used in this study were post weld heat treatment(PWHT) temperature of 500, 550, 600, 650 and post weld heat treatment time of 10 and 15 hour. The welded specimens were tested by tensile strength testing and hardness testing according to ASTM code. The result showed that both of post welds heat treatment temperature and post weld heat treatment time had interaction on hardness at 95% confidential (P value < 0.05). A factor affecting the hardness was the most PWHT temperature 550 ๐C and PWHT time 10 hr. of 279 HV. Microstructure can be concluded that low PWHT temperature and time effect on temper martensite with a coarse grain and martensite scattered throughout. Martensite was a smaller and greater fine grain, the ferrite and the volume decrease due to a higher temperature.This research can be used as data in the following appropriate PWHT parameters to carbon steel weld.

Fatigue of Laserbeam Welded Joints of High-Carbon Steel Strips

2010 ◽  
Vol 659 ◽  
pp. 61-66
Author(s):  
Attila Magasdi ◽  
János Ginsztler ◽  
János Dobránszky
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Carbon Steel ◽  
Heat Affected Zone ◽  
Welded Joints ◽  
High Carbon Steel ◽  
Post Weld Heat Treatment ◽  
High Carbon ◽  
Steel Strips ◽  
Weld Heat

The high-carbon steel strips are one of the most widely used base materials of bandsaw blade manufacturing. These materials have sufficient strength and ductility to cope with the high fatigue load of the bandsaw blades. These endless strips are produced by welding, and therefore the weld and the heat affected zone have different mechanical properties, like tensile strength and fatigue resistance, than the base material. These properties of the weld can be influenced by preheat and post weld heat treatment. Regarding to the latest industrial requirements, the application of laserbeam welding was examined to produce higher standard bandsaw blade. The laserbeam welded joints has lower heat input and narrower heat affected zone compared to metal inert gas (MIG) welding, which is currently used in bandsaw blade manufacturing. To assure the proper mechanical properties and sufficient resistance to fatigue, an examination was carried out to determine the effect of preheat temperature and post weld heat treatment time on the mechanical properties and fatigue behaviour of the laserbeam welded joint.

Effect of Simulated Post-Weld Heat Treatment on the Mechanical Properties and Microstructure of P-No. 1 Carbon Steels

2018 ◽  
Author(s):  
Yongjoon Kang ◽  
Seung-Gun Lee ◽  
Gi-Dong Kim ◽  
Sang-Hoon Lee ◽  
Sang-Woo Song ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Carbon Steel ◽  
Carbon Steels ◽  
Post Weld Heat Treatment ◽  
Steel Plates ◽  
Lateral Expansion ◽  
Division 1 ◽  
Holding Temperature ◽  
Weld Heat

The effect of simulated post-weld heat treatment (PWHT) on the mechanical properties and microstructure of P-No. 1 materials was investigated and the suitability of the exemption requirements of simulated PWHT as specified in ASME Section III Division 1 Subsection NX-2211 was evaluated. SA-516 Gr. 60 and 70 carbon steel plates and SA-106 Gr. B carbon steel pipe were employed, and the materials were subjected to the simulated PWHT with holding temperatures of 610, 650, 690, and 730 °C for 8 hours. Both the tensile strength and lateral expansion of the materials tested in this study showed a tendency to decrease with increasing holding temperature of the simulated PWHT. In some cases, the materials after the simulated PWHT cannot satisfy those mechanical requirements.

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