Plastic behavior of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si13.svg"><mml:mrow><mml:msup><mml:mrow><mml:mi>α</mml:mi></mml:mrow><mml:mrow><mml:mo>′</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> phase in Ti-6Al-4V alloys

Castioni, Florian; Cazottes, Sophie; Rollett, Anthony D.; Dancette, Sylvain

doi:10.1016/j.matlet.2020.128719

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…Castioni and Rollet [66] go further in performing EBSD characterization of rapidly quenched Ti-6Al-4V rods (8 × 8 × 1 mm) to study the impact of α lath orientation on plastic behavior.…”

Section: In Situ High Energy X-ray Diffraction Of Cold Metal Transfermentioning

confidence: 99%

“…Indeed, the topic may seem arbitrary and nuanced. However, the belief that martensitic α ′ is present in Ti-6Al-4V has fueled many studies on its effects including elastic behavior [57], plastic slip [66,72,73], and the effect of martensite on the formation of other, more detrimental phases [74]. If the martensitic phase does not exist then these studies may represent red herrings in the investigation of Ti-6Al-4V.…”

Section: In Situ High Energy X-ray Diffraction Of Cold Metal Transfermentioning

confidence: 99%

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In Situ High Energy X-ray Diffraction Characterization of Phase Transformations and Mechanical Behaviors in Rapidly Solidified Titanium and Stainless Steel Alloys [Thesis]

Johnson

2021

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Advanced manufacturing techniques like additive manufacturing (AM) have poised themselves to revolutionize metal manufacturing. A wide range of AM techniques are capable of manufacturing metal components with unique, complex geometries and hastening the scientific-engineering-development cycle. Metal AM relies on a layer-by-layer rapid manufacturing process to build components from the substrate up. Rapid solidification is a large departure from traditional metal manufacturing due to its complex physics. Characterization of rapid solidification is difficult, stemming from the small volumes used in AM and the fast dynamics of the process. High energy X-ray diffraction (HEXRD) is a solution to the characterization problems of rapidly solidified alloys and AM. HEXRD can probe small volumes at fast rates and provides a wide range of thermomechanical and kinetic information.This thesis presents the application of HEXRD to rapidly solidified titanium and stainless steel alloys through a series of case studies. In the first two studies, HEXRD is applied to rapidly solidified titanium and stainless steel welds. The materials are characterized for their temperature history, phase changes, kinetics, and microstructural evolution. In the next case study, HEXRD is applied to characterize phase changes in elastocaloric NiTi shape memory alloys (SMAs) under thermomechanical load. HEXRD, in conjunction with other tools, is used to explain the superior performance of the additively manufactured SMAs. In the final two case studies, HEXRD is used to measure the mechanical response of AM parts with complex geometries; namely, the octet truss lattice. Diffraction reveals a wide range of materials information about the AM microstructure including unexpected phases, texture, and mechanical response to loading. The mechanical results from HEXRD and then compared with theoretical predictions about the performance of octet truss lattices. Summarily, HEXRD is a diverse tool that is poised to address the complex characterization problems of many aspects of the additive manufacturing process.

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“…Castioni and Rollet [66] go further in performing EBSD characterization of rapidly quenched Ti-6Al-4V rods (8 × 8 × 1 mm) to study the impact of α lath orientation on plastic behavior.…”

Section: In Situ High Energy X-ray Diffraction Of Cold Metal Transfermentioning

confidence: 99%

Section: In Situ High Energy X-ray Diffraction Of Cold Metal Transfermentioning

confidence: 99%

In Situ High Energy X-ray Diffraction Characterization of Phase Transformations and Mechanical Behaviors in Rapidly Solidified Titanium and Stainless Steel Alloys [Thesis]

Johnson

2021

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show abstract

A Process-Structure-Property Simulation Framework for Quantifying Uncertainty in Additive Manufacturing: Application to Fatigue in Ti-6Al-4V

Pribe,

Richter,

Leser

et al. 2023

Integr Mater Manuf Innov

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Solute-induced near-isotropic performance of laser powder bed fusion manufactured pure titanium

Issariyapat

Kariya

Shitara

et al. 2022

Additive Manufacturing

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Plastic behavior of the α′ phase in Ti-6Al-4V alloys

Cited by 7 publications

References 8 publications

In Situ High Energy X-ray Diffraction Characterization of Phase Transformations and Mechanical Behaviors in Rapidly Solidified Titanium and Stainless Steel Alloys [Thesis]

In Situ High Energy X-ray Diffraction Characterization of Phase Transformations and Mechanical Behaviors in Rapidly Solidified Titanium and Stainless Steel Alloys [Thesis]

A Process-Structure-Property Simulation Framework for Quantifying Uncertainty in Additive Manufacturing: Application to Fatigue in Ti-6Al-4V

Solute-induced near-isotropic performance of laser powder bed fusion manufactured pure titanium

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