Fracture Toughness Determinations by Indentation

TL;DR: In this paper, two types of oxide-based ceramic cutting tools have been developed for high speed machining of hardened steel, and the worn-out tools were observed under a stereo-microscope for studying the role of different wear mechanisms on the tool life.

TL;DR: In this article, the mechanical behavior of BaFCI single crystals has been investigated by use of Vickers microindentation, and it was concluded that the chlorine layers introduce a marked anisotropy but do not have the expected weakening effect.

TL;DR: In this article, the effects of the doping of 2O3 and Yb2O3 on the phases, thermo-physical and mechanical properties of the ceramics were investigated.

TL;DR: In this article, a WC-6Co carbide was sintered using hot oscillating pressing (HOP) method and the interplay of sintering parameters between microstructure and mechanical properties was systematically investigated.

TL;DR: In this article, the authors examined the nature of microcracking about small-scale indentations in two highly brittle solids, sapphire and carborundum, and found that cleavage steps comprise the main source of obstruction to lattice restoration across the interfaces.

TL;DR: In this article, a three part study of indentation fracture in the plastic contact regime is presented, where the first part summarizes the observations of fracture and develops a fracture classification scheme, the second part discusses the implications of the fracture characterization for fracture toughness determinations, and abrasive wear and low velocity erosion prediction.

TL;DR: In this article, a simple method for studying slow crack growth is described, which entails measurements of load relaxation at constant displacement using a double torsion specimen, and it is demonstrated that the data generated using this technique are in excellent agreement with data obtained using the more complex conventional techniques, for a range of materials - steel, titanium, glass, aluminum oxide, PMMA.