Investigation on the Effect of Asymmetric Cyclic Loading on Ratcheting Deformation and Bulk Texture Development in HSLA Steel

Dwivedi, Pushpendra Kumar; Sahoo, Santosh Kumar; Dutta, Krishna

doi:10.1007/s12540-021-01107-2

Cited by 13 publications

(2 citation statements)

References 52 publications

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“…Owing to high strain accumulation in TBS and TMS, the intensity of {111}<112> component is also increased (Figure 28). Similar observations are also reported by Dwivedi et al (2022a, 2022b).…”

Section: Resultssupporting

confidence: 91%

Non-transferring arc and wire additive manufacturing: microstructure, mechanical properties and bulk texture evolution of deposits

Pattanayak,

Sahoo,

Sahoo

et al. 2024

RPJ

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Purpose This study aims to demonstrate a modified wire arc additive manufacturing (AM) named non-transferring arc and wire AM (NTA-WAM). Here, the build plate has no electrical arc attachment, and the system’s arc is ignited between tungsten electrode and filler wire. Design/methodology/approach The effect of various deposition conditions (welding voltage, travel speed and wire feed speed [WFS]) on bead characteristics is studied through response surface methodology (RSM). Under optimum deposition condition, a single-bead and thin-layered part is fabricated and subjected to microstructural, tensile testing and X-ray diffraction study. Moreover, bulk texture analysis has been carried out to illustrate the effect of thermal cycles and tensile-induced deformations on fibre texture evolutions. Findings RSM illustrates WFS as a crucial deposition parameter that suitably monitors bead width, height, penetration depth, dilution, contact angle and microhardness. The ferritic (acicular and polygonal) and lath bainitic microstructure is transformed into ferrite and pearlitic micrographs with increasing deposition layers. It is attributed to a reduced cooling rate with increased depositions. Mechanical testing exhibits high tensile strength and ductility, which is primarily due to compressive residual stress and lattice strain development. In deposits, ϒ-fibre evolution is more resilient due to the continuous recrystallisation process after each successive deposition. Tensile-induced deformation mostly favours ζ and ε-fibre development due to high strain accumulations. Originality/value This modified electrode arrangement in NTA-WAM suitably reduces spatter and bead height deviation. Low penetration depth and dilution denote a reduction in heat input that enhances the cooling rate.

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Section: Resultssupporting

confidence: 91%

Non-transferring arc and wire additive manufacturing: microstructure, mechanical properties and bulk texture evolution of deposits

Pattanayak,

Sahoo,

Sahoo

et al. 2024

RPJ

Self Cite

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“…Chen et al [22] analyzed ratcheting behavior of tin-silver-copper (SAC) 305 solder used for electronic packaging, with the aid of model. Dwivedi et al [23] analyzed texture of high strength low alloy (HSLA) steel, undergone asymmetric cyclic loading. Numerous studies have been performed on straincontrol fatigue, tensile properties, interaction of creep-fatigue, corrosion, and aging of the modified 9Cr-1Mo steel [24][25][26][27][28] and the IN 617 alloy.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Ratcheting Fatigue Behavior of Modified 9Cr–1Mo Steel and Inconel 617 Alloy at Homologous Temperature of 0.42

Mishra,

Srinivas,

Singh

2024

steel research int.

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The modified 9Cr–1Mo steel and Inconel (IN) 617 superalloy are high‐temperature alloys of prime importance in several industrial applications. Both of these are used at elevated temperature for various piping and tubing components and undergo asymmetric cyclic loading; therefore, it is highly essential to assess their resistance to accumulation of inelastic strain (ratcheting) under asymmetric stress cycling. In this study, ratcheting behavior of these alloys is compared at the homologous temperature of 0.42, under uniaxial asymmetric stress loading with positive mean stress. Deformation behavior of the tested samples is analyzed by transmission electron microscope. While there is homogeneous deformation in the modified 9Cr–1Mo steel, there is intersection of slip bands and presence of dislocation tangles in the IN 617 alloy. Fracture surface of the modified 9Cr–1Mo steel, tested under asymmetric cyclic loading, reveals typical ductile fracture resulting from tensile loading, whereas there is characteristic fatigue fracture of the IN 617 alloy.

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Adaptive control of filler wire speed in wire arc additive manufacturing: impact of inter-layer dwell time on metallurgical and mechanical aspects of ER70S-6 deposits

Pattanayak,

Sahoo,

Prajapati

et al. 2024

Int J Adv Manuf Technol

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Investigation on the Effect of Asymmetric Cyclic Loading on Ratcheting Deformation and Bulk Texture Development in HSLA Steel

Cited by 13 publications

References 52 publications

Non-transferring arc and wire additive manufacturing: microstructure, mechanical properties and bulk texture evolution of deposits

Non-transferring arc and wire additive manufacturing: microstructure, mechanical properties and bulk texture evolution of deposits

A Comparative Study of Ratcheting Fatigue Behavior of Modified 9Cr–1Mo Steel and Inconel 617 Alloy at Homologous Temperature of 0.42

Adaptive control of filler wire speed in wire arc additive manufacturing: impact of inter-layer dwell time on metallurgical and mechanical aspects of ER70S-6 deposits

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