Effect of Uniaxial Tension on the Microstructure and Texture of High Mn Steel

Pramanik, Sudipta; Gazder, Azdiar A.; Saleh, Ahmed A.; Santos, Dagoberto Brandão; Pereloma, Elena V.

doi:10.1002/adem.201800258

Cited by 9 publications

(2 citation statements)

References 56 publications

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“…With dimethylacetamide as a solvent, morphological analysis suggested increased toughness, while in case when tetrahydrofuran was used as a solvent, nanocomposite appeared brittle in nature. Pramanik et al carried out the quasi‐static and high‐strain rate experimental investigations on nanocomposites of vinyl ester with reactive graphene nanoplatelets (xGnP) at 1.25% and 2.5 wt% and characterized the effect of strain rate and the contribution of xGnP reinforcement along with CTBN (carboxyl‐terminated butadiene nitrile) toughening on the indirect tensile properties. Under quasi‐static loading, tensile strength of vinyl ester reduced by the addition of xGnP reinforcement as well as with CTBN toughening.…”

Section: Thermoset–graphene Nanocompositesmentioning

confidence: 99%

Mechanical and Thermal Properties of Thermoset–Graphene Nanocomposites

Saleem

Edathil

Ncube

et al. 2016

Macro Materials & Eng

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formaldehyde, phenol formaldehyde, silicone, vinyl ester, cyanate ester, unsaturated polyester resin, etc. The properties of thermoset materials can be further improved by reinforcing them with fi llers, most commonly used being clays, carbon nanotubes, and graphene nanoplatelets. GrapheneGraphene is a fundamental building block of all graphitic forms of carbon and consists of a single layer of sp 2 -hybridized carbon atoms arranged in a honeycomb structure. A single defect-free graphene layer has Young's modulus of 1.0 TPa, intrinsic strength 42 N m −1 , thermal conductivity 4840-5300 W (m K) −1 , electron mobility exceeding 25 000 cm 2 V −1 s −1 , excellent gas impermeability and specifi c surface area of 2630 m 2 g −1 . [3][4][5][6][7][8][9][10][11] On incorporation into polymers, the mechanical, thermal, as well as electrical properties of the polymeric materials are significantly improved. [ 3,[12][13][14][15] The geometry differs with size and number of atomic layers, which determines the aspect ratio and the specifi c surface area. Generally speaking, GNSs have higher specifi c surface area than CNTs, thus, having higher potential of property enhancement in Graphene has resulted in signifi cant research effort to generate polymer nanocomposites with improved mechanical, thermal as electrical properties as compared to pure polymers. A large number of studies have been undertaken using different graphene derivatives, fi ller loadings, synthesis methods, and so on to obtain optimum fi ller dispersion as well as fi ller-matrix interactions, which are crucial for achieving signifi cant enhancement in the properties, especially at low fi ller fraction. This review summarizes the mechanical and thermal properties of numerous studies carried out for the property enhancements of commercially relevant thermosetting materials such as epoxy, polyurethane, natural rubber, melamine formaldehyde, phenol formaldehyde, silicones, vinyl ester, cyanate ester, and unsaturated polyester resin.

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Section: Thermoset–graphene Nanocompositesmentioning

confidence: 99%

Mechanical and Thermal Properties of Thermoset–Graphene Nanocomposites

Saleem

Edathil

Ncube

et al. 2016

Macro Materials & Eng

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“…[2,3] Although extensive research on the deformation behavior of TRIP-TWIP steels during uniaxial tension and in-plane compression has been undertaken (e.g., Refs. [4,5]), fewer studies have investigated their performance during bending (e.g., Refs. [6,7]).…”

Section: Introductionmentioning

confidence: 99%

Void Formation and Crack Propagation in a Cr–Mn–N Metastable Austenitic Stainless Steel During Bending

Kamali

Xie

et al. 2022

Adv Eng Mater

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Microstructure evolution via deformation-induced martensitic transformation, void formation, and crack propagation is investigated in a metastable austenitic Cr-Mn-N stainless steel for up to 90°bending using a combination of electron backscattering diffraction and parent grain reconstruction. Stress-strain heterogeneity and stress triaxiality studied using finite-element analysis reveal that the inner and outer radii are in approximately uniaxial compressive and tensile stress states, respectively, with the outer radius showing higher values for von Mises and principal stresses and equivalent strain. Voids are observed at both austenite/α 0 -martensite and α 0 /α 0 -martensite interfaces. Parent grain reconstruction applied to the 90°bending sample reveal that the cracks at α 0 /α 0martensite interfaces tend to propagate predominantly along intergranular parent austenite grain boundaries. It is also found that both intragranular and intergranular cracks in parent austenite tend to propagate between α 0 -martensite child-child grains comprising the same crystallographic packets. This is the first study of its kind to comprehensively show this phenomenon. A representative example of intergranular crack propagation within a 110 h i‖normal direction (ND)-oriented parent austenite grain is also demonstrated.

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