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.
During assembly of resuperheaters in a modernized power unit numerous cracks have occurred in 44.5 (OD) mmx4 mm TIG welded tube joints made of dissimilar martensitic steels X20CrMoV 12.1 and T91. All cracks were located in the HAZ of the X20 steel. The failure investigation covered metallographic examination and Vickers hardness measurements of test pieces cut out from the damaged resuperheaters....
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.