TEM of nanostructured metals and alloys

Karnthaler, H. P.; Waitz, Thomas; Rentenberger, Christian; Mingler, Bernhard

doi:10.1016/j.msea.2004.01.125

Cited by 17 publications

(4 citation statements)

References 17 publications

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“…In situ TEM annealing has been used to investigate grain growth of nanocrystalline materials in a number of studies [9,[20][21][22][23][24][25][26][27][28], but most [9,[20][21][22][23][24][25][26][27] have not reported this type of migration behaviour. One possible explanation stems from differences in sampling rates.…”

Section: Grain Boundary Migrationmentioning

confidence: 99%

Grain boundary migration during abnormal grain growth in nanocrystalline Ni

Hibbard

Radmilović

Aust

et al. 2008

Materials Science and Engineering: A

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Section: Grain Boundary Migrationmentioning

confidence: 99%

Grain boundary migration during abnormal grain growth in nanocrystalline Ni

Hibbard

Radmilović

Aust

et al. 2008

Materials Science and Engineering: A

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“…Fig. 5(c) shows the complex contrast and high density of irregular structured grain boundaries resulting from the overlapping of martensite orientation, strain and moiré fringe contrast [10]. 6 shows the stress-strain curves of Ti 51.5 Ni 25 Cu 23.5 ribbon at RT.…”

Section: Microstructure Of Ti 515 Ni 25 Cu 235 Ribbonmentioning

confidence: 99%

Microstructure and Tensile Behavior of Ti-Rich Ti-Ni-Cu Melt-Spun Ribbon

Wen

Min

Толочко

2014

AMR

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Microstructure and mechanical properties of Ti51.5Ni25Cu23.5 ribbon fabricated by melt spinning were investigated by X-ray diffraction (XRD), transmission electron microscopy (TEM) and tensile tests. Some B19 martensite crystalline with (011) compound twin was embedded in the mainly amorphous ribbon, while the ribbon annealed at 450°C for 1 h is at fully martensitic state. Annealing process alter the preferential orientation from (022)-B19 to (111)-B19. Tensile fracture stresses of as-spun ribbon and the annealed ribbon are 1257 MPa and 250 MPa, respectively. The tensile fracture morphology of as-spun ribbon shows typical vein fringe while that of the annealed ribbon reveals fine but depth-inhomogeneous dimples. After tensile deformation, the annealed ribbon exhibits typical martensitic detwinning behavior accompanying with the strain contrast.

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“…This means that the finer the ferrite in the cast iron matrix, the better the strength properties. There are many studies on the effects attributable to the ultra-fineness of phase components on the functional properties of various materials (e.g., [ 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 ]); however, relatively few papers address ADI cast irons only.…”

Section: Introductionmentioning

confidence: 99%

Abrasive Wear Resistance of Ultrafine Ausferritic Ductile Iron Intended for the Manufacture of Gears for Mining Machinery

et al. 2023

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The purpose of this study was to experimentally determine the abrasion wear properties of ausferritic ductile iron austempered at 250 °C in order to obtain cast iron of class EN-GJS-1400-1. It has been found that such a cast iron grade makes it possible to create structures for material conveyors used for short-distance transport purposes, required to perform in terms of abrasion resistance under extreme conditions. The wear tests addressed in the paper were conducted at a ring-on-ring type of test rig. The test samples were examined under the conditions of slide mating, where the main destructive process was surface microcutting via loose corundum grains. The mass loss of the examined samples was measured as a parameter characteristic of the wear. The volume loss values thus obtained were plotted as a function of initial hardness. Based on these results, it has been found that prolonged heat treatment (of more than 6 h) causes only an insignificant increase in the resistance to abrasive wear.

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TEM of nanostructured metals and alloys

Cited by 17 publications

References 17 publications

Grain boundary migration during abnormal grain growth in nanocrystalline Ni

Grain boundary migration during abnormal grain growth in nanocrystalline Ni

Microstructure and Tensile Behavior of Ti-Rich Ti-Ni-Cu Melt-Spun Ribbon

Abrasive Wear Resistance of Ultrafine Ausferritic Ductile Iron Intended for the Manufacture of Gears for Mining Machinery

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