This decommissioned ERA site remains active temporarily to support our final migration steps to https://ualberta.scholaris.ca, ERA's new home. All new collections and items, including Spring 2025 theses, are at that site. For assistance, please contact erahelp@ualberta.ca.
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2017-01-01
This micrograph (magnified √ó 500), taken by an optical microscope, shows multi-scaled crystalline grains at the interface between a martensitic weld metal (upper left) and a Grade 91 steel (bottom right). Weld metal solidified from the molten steel liquid and grew into coarse columnar crystals...
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2016-01-01
This micrograph, taken by a scanning electron microscope, shows the fracture surface (magnified × 1000) of a failed pressure vessel component joint used in fossil fired power plants. It presents the history of this failure. Industrial incidents of the welded structure components can cause huge...