Nondestructive assessment of tensile properties of cold worked AISI type 304 stainless steel using nonlinear ultrasonic technique

Viswanath, A.; Rao, B. P. C.; Mahadevan, S.; Parameswaran, P.; Jayakumar, T.; Raj, Baldev

doi:10.1016/j.jmatprotec.2010.11.011

Cited by 63 publications

(26 citation statements)

References 18 publications

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“…The high strain levels imposed by swaging meant there was minimal evidence of work hardening following yield, as shown by the relatively small difference in yield strength and UTS, resulting in the elastic to fully plastic response shown in Figure 17. Similar behaviour has been widely documented for a variety of different cold worked materials [5][6][7][8][9][10][11][12][13], typically processed by cold rolling.…”

Section: Discussionsupporting

confidence: 75%

Characterisation of an Advanced Nickel Based Superalloy Post Cold Work by Swaging

Bache

O’Hanlon

Withers

et al. 2016

Metals

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Cylindrical bars of the advanced nickel based superalloy RR1000 were subjected to swaging to induce approximately 30% cold work. Grain size analysis demonstrated a distinct modification to the microstructure whilst electron back scattered diffraction (EBSD) measurements confirmed the evolution of a relatively strong <111> texture parallel with the longitudinal bar axis. Intragranular strain damage was identified. The effects of the swaging on bulk mechanical properties are illustrated across a range of test temperatures.

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Section: Discussionsupporting

confidence: 75%

Characterisation of an Advanced Nickel Based Superalloy Post Cold Work by Swaging

Bache

O’Hanlon

Withers

et al. 2016

Metals

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“…If we assume that the attenuation can be neglected, then the motion equation for a longitudinal wave in a solid, using the generalization of Newton's law, may be written as [22,23]:…”

Section: Methodsmentioning

confidence: 99%

Nondestructive Evaluation of Strain-Induced Phase Transformation and Damage Accumulation in Austenitic Stainless Steel Subjected to Cyclic Loading

Kim

2017

Metals

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Strain-induced phase transformation and damage accumulation in austenitic stainless steel subjected to cyclic loading were investigated by nondestructive evaluation. The cyclic loading test was performed at various strain amplitudes at the same strain rate. The volume fraction of the strain-induced phase transformation (α -martensite) was determined by ferrite scope and magnetic coercivity measurement. The damage accumulation and microstructure of cyclic loading specimens were characterized by microstructural observation. The cyclic hardening and cyclic softening behavior are discussed in terms of the generation of strain-induced martensite phases and a dislocation substructure at each strain amplitude. The volume fraction of the strain-induced phase increased with the strain amplitude. The increase in α -martensite was evaluated by measuring the ultrasonic nonlinearity parameter. The presence of α -martensite is sufficient to distort the austenitic matrix due to an interface misfit between the austenite matrix and α -martensite, resulting in wave distortion of the longitudinal wave. From this wave distortion, super-harmonics may be generated with nucleation of the strain-induced martensite, a process that strongly depends on the strain amplitude.

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“…Nonlinear ultrasound was briefly used to investigate neutron irradiation in copper crystals, and results showed that irradiation caused dislocations to be pinned [60]. It has also been shown that nonlinear ultrasound is related to tensile properties of cold worked stainless steel [61], and also creep damage in titanium alloys [62].…”

Section: Nonlinear Ultrasonicmentioning

confidence: 99%

Roadmap for Nondestructive Evaluation of Reactor Pressure Vessel Research and Development by the Light Water Reactor Sustainability Program

Smith¹,

Nanstad²,

Clayton³

et al. 2012

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Nondestructive assessment of tensile properties of cold worked AISI type 304 stainless steel using nonlinear ultrasonic technique

Cited by 63 publications

References 18 publications

Characterisation of an Advanced Nickel Based Superalloy Post Cold Work by Swaging

Characterisation of an Advanced Nickel Based Superalloy Post Cold Work by Swaging

Nondestructive Evaluation of Strain-Induced Phase Transformation and Damage Accumulation in Austenitic Stainless Steel Subjected to Cyclic Loading

Roadmap for Nondestructive Evaluation of Reactor Pressure Vessel Research and Development by the Light Water Reactor Sustainability Program

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