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.
In situ optical absorptivity measurements are carried out to clarify the physics of the laser‐material interactions involved and to validate both finite element and analytical models describing laser powder bed fusion processing. Absorption of laser energy is evaluated directly using precise calorimetry measurements and compared to melt pool depths for common structural metal alloys (Ti‐6Al‐4V, Inconel...
Spatial beam profile tailoring is a potential means for microstructural control during laser additive manufacturing. Microstructures produced by circular and elliptical laser profiles in 316L stainless steel single-tracks and applications to more general beam shapes are presented.
We use high speed multiwavelength thermal imaging to quantify cooling rates and temperature gradients generated by the laser — powder interaction during a metal powder bed fusion process to understand rapidly solidified material properties.
Additively manufactured (AM) metals are often highly textured, containing large columnar grains that initiate epitaxially under steep temperature gradients and rapid solidification conditions. These unique microstructures partially account for the massive property disparity existing between AM and conventionally processed alloys. Although equiaxed grains are desirable for isotropic mechanical behavior,...
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.