The Effect of Post Weld Heat Treatment (PWHT) on the Microstructure, Microhardness and Sulphide Stress Corrosion Cracking (SSCC) of Ni-Base Superalloy IN625 Hot Wire TIG Cladding on AISI 4130 Steel

Sedighi, M.; Shajari, Y.; Razavi, Seyed Hossein; Sabet, H.; Porhonar, Mohammad

doi:10.1134/s2070205120060210

Cited by 7 publications

(4 citation statements)

References 21 publications

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“…Due to the chemical composition and performance characteristics, the welding performance of 10Cr9Mo1VNb steel is poor, and it is highly sensitive to welding heat input during welding, which is prone to cracking and unstable mechanical properties of joints [8] . In addition, 10Cr9Mo1VNb steel is usually supplied and used under normalizing and tempering conditions.…”

Section: Introductionmentioning

confidence: 99%

Influence of post-welding heat treatment on microstructure and peculiarity of 10Cr9Mo1VNb boiler steel welded by hot wire TIG

Li,

Lai,

Huang

2024

J. Phys.: Conf. Ser.

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Hot wire tungsten noble gas (HW-TIG) soldering tests are conducted on 10Cr9Mo1VNb boiler steel with multi-layer and multi-pass, and the soldered joints are subjected to post-weld heat treatment (PWHT) at different temperatures and times from 740°C to 790°C and 1 hour to 4 hours. The influence of PWHT on the microstructure and peculiarity of the joints are analyzed by using hardness, metallography, room temperature tensile testing, Charpy impact testing, SEM, and other experimental methods. The results show that the PWHT can transform the martensite formed in the welding process into tempered martensite, which can significantly improve the uniformity of the microstructure and peculiarity of each area of the joint. When subjected to heat treatment at 740°C, both strength and ductility improve with the increase of heat treatment time, while the plasticity gets a slight decrease. However, when subjected to heat treatment at 790°C, strength, plasticity, and ductility decrease with the increase of time, mainly due to the carbide coarsening such as M23C6 in the joint.

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Section: Introductionmentioning

confidence: 99%

Influence of post-welding heat treatment on microstructure and peculiarity of 10Cr9Mo1VNb boiler steel welded by hot wire TIG

Li,

Lai,

Huang

2024

J. Phys.: Conf. Ser.

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“…The required level of physical, mechanical and operational properties of modern heat-resistant nickel alloys is ensured by a rather complex alloying system [1][2][3][4][5][6][7][8]. Quite effective ways to improve the complex properties of existing alloys are known, such as modification and other technological methods for improving the structure and quality indicators of the material of finished products [9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

MODELING OF CARBIDE FORMATION IN ALLOY OF THE Ni-Cr-Co-W-Mo-Al-Ti-C SYSTEM

Glotka,

Byelikov,

Lysytsya

2024

Acta Metall Slovaca

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Theoretical modeling of thermodynamic processes of separation of carbide phases was carried out, as well as a practical study of the structure and distribution of chemical elements in carbides. Based on an integrated approach for the Ni-Cr-Co-W-Mo-Al-Ti-C system, new regression models were obtained that make it possible to predict the chemical composition of carbides based on the chemical composition of the alloy. A comparative assessment of the calculation results obtained using regression models and experimental data obtained by X-ray spectroscopy was carried out.

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“…Gas tungsten arc welding (GTAW) process was used in cladding of steel to improve the strength and reduction of residual stresses for gas refinery [7]. Sedighi et al [8] investigated cladding using TIG (tungsten inert gas arc welding) technique, followed by PWHT at temperatures varying from 650-850°C. The results reveals that no crack was observed thought the specimen.…”

Section: Introductionmentioning

confidence: 99%

An overview of recent advancement in grade cladded surface using overlay techniques and various materials

Butaley

Dhole

Khond

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In this review paper, previous studies on effect of cladding on surface of welding using overlay was discussed. The Research papers up to 2021 related with various cladding methods, effect on mechanical properties and overlay methods were discussed. Also, paper discussed the effect on tribological behavior. This paper reported the various metal and its alloy, recent development in advanced materials for cladding in various high temperature applications. The merits, demerits, limitations and future development and possible area of research in welding cladding methods were discussed.

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The Effect of Post Weld Heat Treatment (PWHT) on the Microstructure, Microhardness and Sulphide Stress Corrosion Cracking (SSCC) of Ni-Base Superalloy IN625 Hot Wire TIG Cladding on AISI 4130 Steel

Cited by 7 publications

References 21 publications

Influence of post-welding heat treatment on microstructure and peculiarity of 10Cr9Mo1VNb boiler steel welded by hot wire TIG

Influence of post-welding heat treatment on microstructure and peculiarity of 10Cr9Mo1VNb boiler steel welded by hot wire TIG

MODELING OF CARBIDE FORMATION IN ALLOY OF THE Ni-Cr-Co-W-Mo-Al-Ti-C SYSTEM

An overview of recent advancement in grade cladded surface using overlay techniques and various materials

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