The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A system consisting of piezoelectric transducers, arbitrary waveform generator, power amplifier, laser vibrometer, digital oscilloscope, and a computer has been constructed to study the nonlinear acoustic characteristics of fatigue microcracks of 2024-T351 aluminum alloy plates. Using two different frequency signals (fH=810 kHz, fL=100 kHz), the intact and microcracked samples are experimented, respectively...
The purpose of this study is to determine whether it is feasible to acquire the cooling curve with obvious characteristic points by the wet sample cups made of green sand. If it were feasible, this would replace the traditional dry sample cup and thus reduce the expenditure. Taking full consideration of the thermocouple position, and the volume and thickness of the sample cups, a set of molds is designed...
Both the theoretical analysis and experiments on Al-Si alloys have shown that a relationship between the surface tension and the modification of Al-Si alloys exists. A new method for the rapid prediction of the the modification level of Al-Si alloys by surface tension has been introduced. The quantity of the modifier is found to have the greatest effect, followed by the time of the modif cation and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.