Cold Cracking of Flux Cored Arc Welded Armour Grade High Strength Steel Weldments

材料科学技术（英文）, 2009, 25(4): 516-526.

^1, , ^2, , ^3,

1.Metal Joining Research Center MJRC, Sri Ramakrishna Engineering College, NGGO Colony-Post, Coimbatore-641 022, Tamilnadu, India

2.Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar-608 002, Tamilnadu, India

3.Metal Joining Section, Defence Metallurgical Research Laboratory (DMRL), Kanchanbagh (P.O.), Hyderabad-560 058, Andhra Pradesh, India

基金项目: Chennai for providing base material, Department of Manufacturing Engineering, Annamalai University for providing implant testing facility and M/s Defence Metallurgical Research Laboratory (DMRL) M/s Combat Vehicle Research Development Establishment (CVRDE), Avadi Armament Research Board (ARMREB), New Delhi for funding this project work(MAA/03/41)

Cold Cracking of Flux Cored Arc Welded Armour Grade High Strength Steel Weldments

G.Magudeeswaran ^1, , V.Balasubramanian ^2, , G.Madhusudhan Reddy ^3,

1.Metal Joining Research Center MJRC, Sri Ramakrishna Engineering College, NGGO Colony-Post, Coimbatore-641 022, Tamilnadu, India

2.Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalai Nagar-608 002, Tamilnadu, India

3.Metal Joining Section, Defence Metallurgical Research Laboratory (DMRL), Kanchanbagh (P.O.), Hyderabad-560 058, Andhra Pradesh, India

Keywords： Quenched and tempered steel

In this investigation, an attempt has been made to study the influence of welding consumables on the factors that influence cold cracking of armour grade quenched and tempered (Q&T) steel welds. Flux cored arc welding (FCAW) process were used making welds using austenitic stainless steel (ASS) and low hydrogen ferritic steel (LHF) consumables. The diffusible hydrogen levels in the weld metal of the ASS and LHF consumables were determined by mercury method. Residual stresses were evaluated using X-ray stress analyzer and implant test was carried out to study the cold cracking of the welds. Results indicate that ASS welds offer a greater resistance to cold cracking of armour grade Q&T steel welds.

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Cold Cracking of Flux Cored Arc Welded Armour Grade High Strength Steel Weldments

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