نتایج جستجو برای: az91 cast alloy

تعداد نتایج: 75523  

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 1996

Journal: :Journal of the Korean institute of surface engineering 2016

2009
Yoshihiko Yokoyama Enrico Mund Akihisa Inoue Ludwig Schultz Tsuyoshi Kajitani

Authors stressed an importance of low oxygen content of slowly cooled ingots for the homogeneous amorphous half top layers of arc-melted button ingots. The quenching procedure was also not favored to produce amorphous top layers. However authors made a liquid quenching machine to enhance the cooling speed. Photographs Figs.4(b) and 5 are troublesome. Originality as well as scientific significan...

Journal: :Dental materials journal 2012
Kazuo Koiso Takahiro Saito Isao Kawashima

The objective of this research was to investigate the effect of mold temperature on grain interior and grain boundary reactions in a14-karat gold alloy. The alloy (Au-15%Ag-3%Pd-24 mass%Cu) was cast into an investment with different mold temperatures (22, 250,400, and 700°C) and then analyzed using SEM, X-ray diffraction, and potentiodynamic polarization tests. Lower mold temperatures(22 and 25...

Journal: :Journal of electrochemical science and technology 2022

The effect of solution-treated on the self-corrosion performance and discharge AZ91 magnesium alloy as anode material was analyzed by microscopic characterization, immersion tests, electrochemical measurements, tests. study shows that β-phase in gradually dissolved matrix with increase solution temperature, activity significantly improved. Through comparison three different processes, it is fou...

2013
P. V. Ravi Kumar Satya Meher

A great number of wheel tests are required in designing and manufacturing of wheels to meet satisfactory requirements. The impact performance of a wheel is the major concern. Numerical implementation of impact test is essential to shorten the design time, improve the mechanical performance and lower development cost. Project includes the “Topology Optimization of Cast Aluminium Alloy wheel” usi...

2017
D Eggbeer R Bibb R Williams

This study explores the application of computer-aided design and manufacture (CAD/ CAM) to the process of electronically surveying a scanned dental cast as a prior stage to producing a sacrificial pattern for a removable partial denture (RPD) metal alloy framework. These are designed to retain artificial replacement teeth in the oral cavity. A cast produced from an impression of a patient’s mou...

2017
Dan Song Cheng Li Liwen Zhang Xiaolong Ma Guanghui Guo Fan Zhang Jinghua Jiang Aibin Ma

In this study, we report an effective approach, pre-solid solution (SS) treatment, to reduce the in-vitro bio-degradation rate of the hydrothermal-synthesizing coated Mg-2Zn-Mn-Ca-Ce alloy in Hanks' solution. Pre-SS treatment alters the microstructure of alloys, which benefits the corrosion resistances of the substrate itself and the formed coating as well. The micro-galvanic corrosion between ...

2005

The specification of an aluminum alloy for a cast component is based upon the mechanical properties it can achieve. For the designer and purchaser, it is vital to understand that the properties obtained from one particular combination of casting alloy, foundry practice and thermal treatment may not be identical to those achieved with the same alloy in a different foundry or with a different the...

Journal: :Journal of Magnesium and Alloys 2022

An entrainment defect (also known as a double oxide film or bifilm) acts void containing an entrapped gas when submerged into light-alloy melt, thus reducing the quality and reproducibility of final castings. Previous publications, carried out with Al-alloy castings, reported that this trapped could be subsequently consumed by reaction surrounding volume negative effect defects. Compared Al-all...

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