Results 121 to 130 of about 399,302 (324)

Impression of Vickers Hardness (Part 2)

Journal of the Japan Society of Precision Engineering, 1959
In this report, the Vickers impression is investigated on the flatness of its pyramid surface and the figure on the specimen surface. Steel and brass are used for a specimen to be tested The pyramid surfaces are always convex and there is the highest point at the center.
Nobuyuki OHTA, Chikao YOKONO, Seigo SANO
openaire   +2 more sources

Novel Non‐Equimolar High‐Entropy Zirconates With Superior Thermophysical Properties

Rare Metals, EarlyView.
ABSTRACT Rare‐earth zirconates (RE2Zr2O7) are promising candidates for topcoat materials in thermal barrier coatings (TBCs). However, their practical application in TBCs is limited by poor fracture toughness and low thermal expansion coefficient (TEC).
Taoyi Lu, Zhiqin Wen, Suzhen Kang, Li Tang, Jiyuan Huang, Gaoxiang Wei, Rui Zhang, Yuhong Zhao   +7 more
wiley   +1 more source

Structure, Composition, and Mechanical Properties of Australian Orthodontic Wires [PDF]

, 2009
Objective: To investigate the surface morphology, structure, elemental composition, and key mechanical properties of various sizes and tempers of Australian wires.
Berzins, David W., Bradley, T. Gerard, Eliades, George, Eliades, Theodore, Pelsue, Brian M., Zinelis, Spiros   +5 more
core   +1 more source

Alteration of Phase Transformation Behavior and Prior Austenite Grain Structure Due to Elevated Tramp Element Concentrations in a Hypoeutectoid Steel

steel research international, EarlyView.
The phase transformation behavior of a hypoeutectoid steel is studied in comparison with alloys containing higher concentrations of tramp elements, simulating high recycling rates. The examination of microstructures reveals that the tramp elements facilitate the formation of displacive phases along with retained austenite.
Lukas Hatzenbichler, Marek Gocnik, Phillip Haslberger, Matthew Galler, Andreas Stark, Oleksandr Glushko, Jozef Keckes, Ronald Schnitzer   +7 more
wiley   +1 more source

Tensile properties and hardness of two types of 11Cr-ferritic/martensitic steel after aging up to 45,000 h

Nuclear Materials and Energy, 2016
The relationship among tensile strength, Vickers hardness and dislocation density for two types of 11Cr-ferritic/martensitic steel (PNC-FMS) was investigated after aging at temperatures between 400 and 800°C up to 45,000h and after neutron irradiation. A
Y. Yano, T. Tanno, Y. Sekio, H. Oka, S. Ohtsuka, T. Uwaba, T. Kaito   +6 more
doaj   +1 more source

Experimental elucidation of co-relationship between localization phenomena and strength variation of polymeric materials by Vickers hardness test.

, 2023
Yuuma OSAWA, Syoudai OYAMA, Koji MIMURA, I RIKU, Tsutomu UMEDA, Toru Tsuda, Atsushi Abe, Shigeaki KITAMURA, Takuya HATAO   +8 more
openalex   +1 more source

Effect of dry cryogenic treatment on Vickers hardness and wear resistance of new martensitic shape memory nickel-titanium alloy

European Journal of Dentistry, 2015
Objectives: The aim of this study is to investigate the role of dry cryogenic treatment (CT) temperature and time on the Vickers hardness and wear resistance of new martensitic shape memory (SM) nickel-titanium (NiTi) alloy.
T. S. Vinothkumar, D. Kandaswamy, G. Prabhakaran, A. Rajadurai   +3 more
semanticscholar   +1 more source

Influence of Higher Tramp Element Level on the Weldability of Automotive Steels

steel research international, EarlyView.
The use of green recycled steels is constantly expanding in the automotive industry. The increase in tramp elements resulting from the recycling of steel is problematic. Tramp elements can lead to a negative influence on the weldability. To understand the influence, the welding properties of three green steels are characterized. The potential limits of
Elias Gebhard Vogt, Patrick Veyel, Lars Gebel, Christian Meyer, Robert Thomas, Michael Thomas, Christoph Herrmann   +6 more
wiley   +1 more source

The effect of in-office bleaching agents on the Vickers hardness and surface topography of polished and unpolished CAD/CAM composite materials. [PDF]

Sci Rep, 2023
Alamoush RA, Yang J, Alhotan A, Haider J, Matinlinna JP, Elraggal A.   +5 more
europepmc   +1 more source

Influence of Heat Treatment and Scan Rotation on the Microstructure of Hot Work Tool Steel Manufactured using Laser Powder Bed Fusion

steel research international, EarlyView.
The study investigates the influence of heat treatment and scan rotation on the microstructure of a modified H13 tool steel manufactured using laser powder bed fusion. Key findings include the refinement of prior austenite grains (PAGs) due to recrystallization and carbide pinning, and the significant impact of scan rotation on the size distribution of
Negar Panahi, Fengxiang Lin, Christos Oikonomou, Mikael Grehk   +3 more
wiley   +1 more source