Studies on Mechanical properties of Graphite reinforced Ti (Cx, N1-x) using Nanoindentation techniques

Akinribide, Ojo Jeremiah; Mekgwe, Gadifele Nicolene; Ajibola, Olawale Olarewaju; Obadele, Babatunde Abiodun; Akinwamide, Samuel Olukayode; Olubambi, Peter Apata

doi:10.1016/j.promfg.2019.02.085

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…The test shows a higher accuracy for most materials, but it is expensive, slow, and relies on a complex specimen-shaping process. Therefore, FLDs are plotted using some wellestablished numerical models [9]. Tasan et al [10] carried out nanoindentation experiments and concluded that the numerical damage could not be applied with better accuracy to the martensite phase because the indents are the same size or bigger than martensite grains.…”

Section: Introductionmentioning

confidence: 99%

Micromechanical Effect of Martensite Attributes on Forming Limits of Dual-Phase Steels Investigated by Crystal Plasticity-Based Numerical Simulations

et al. 2022

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This study analyses the effect of martensite grain size and its volume fraction in dual-phase (DP) steel on (1) the formability limit, (2) average global behavior under different loading conditions, and (3) damage initiation. The virtual RVEs (Representative Volume Elements) were constructed using DREAM.3D software with a variation of microstructural attributes. The numerical simulations were carried out using DAMASK, which evaluates the polycrystalline material point behavior and solves versatile constitutive equations using a spectral solver. The simulations were post-processed to obtain global and local stress, strain, and damage evolution in constructed RVEs. The global results were processed to obtain FLDs according to Keeler-Brazier (K-B) and Marciniak and Kuczynski (M-K) criteria. In this work, the capability of microstructure-based numerical simulations to analyze the FLDs has been established successfully. From Forming Limit Diagrams (FLDs), it was observed that formability changes by changing the strain hardening coefficients (n-values), the martensite fraction, and martensite grain sizes of DP steels. The improved formability was observed with lower martensite fraction, i.e., 17%, decreased martensite grain size, i.e., 2.6 µm, and higher strain hardening coefficient. The M-K approach shows the better capability to predict the formability by various loading conditions and clarifies the necking marginal zone of FLD. The damage propagation is also strongly affected by the loading conditions. The current study would be a good guide for designers during the manufacturing and selecting of appropriate DP steels based on the service loading conditions.

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Section: Introductionmentioning

confidence: 99%

Micromechanical Effect of Martensite Attributes on Forming Limits of Dual-Phase Steels Investigated by Crystal Plasticity-Based Numerical Simulations

et al. 2022

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“…Materials such as TiCN based cermet has received enormous attention owing to their beneficial mechanical and physical properties, which include high hardness (2500-3000 HV), high melting temperatures (3050 • C), wear and improved corrosion resistance [1,2]. Moreover, Titanium carbide (TiC) and titanium nitride (TiN) possess FCC crystal structure and form a substantially complete solid solution where the stoichiometry ratio of carbon and nitrogen atoms in the form of TiC x N y (as x + y = 1) exhibits a wide range of composition [3,4]. Thus, numerous TiCN with respect to various compositions, stress states, and morphologies are employed for applications requiring enhanced toughness [5,6].…”

Section: Introductionmentioning

confidence: 99%

Insight into tribological and corrosion behaviour of binderless TiCxNy ceramic composites processed via pulsed electric current sintering technique

Mekgwe

Akinwamide

Akinribide

et al. 2022

Ceramics International

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Densification and corrosion properties of graphite reinforced binderless TiC70N30 ceramic composites

Mekgwe,

Akinribide,

Akinwamide

et al. 2024

Journal of the European Ceramic Society

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Studies on Mechanical properties of Graphite reinforced Ti (Cx, N1-x) using Nanoindentation techniques

Cited by 6 publications

References 13 publications

Micromechanical Effect of Martensite Attributes on Forming Limits of Dual-Phase Steels Investigated by Crystal Plasticity-Based Numerical Simulations

Micromechanical Effect of Martensite Attributes on Forming Limits of Dual-Phase Steels Investigated by Crystal Plasticity-Based Numerical Simulations

Insight into tribological and corrosion behaviour of binderless TiCxNy ceramic composites processed via pulsed electric current sintering technique

Densification and corrosion properties of graphite reinforced binderless TiC70N30 ceramic composites

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