منابع مشابه
On the Toughness of Ductile Adhesive Joints
Crack propagation along one of the interfaces between a thin ductile adhesive layer and the elastic substrates it joins is considered. The layer is taken as being elastic-plastic, and the fracture process of the interface is modeled by a traction-separation law, characterized by the peak separation stress 6 and the work of separation per unit area To. Crack growth resistance curves for mode I l...
متن کاملOn-line Detection of Imperfections in Laser-brazed Joints
This paper presents a joint imperfection detection method for on-line process monitoring of laser brazing processes. The method uses images from two spectral ranges and fuses their features with the scores of the separately calculated log-likelihood ratios to decide whether the currently generated part of a joint contains an imperfection or not. To avoid unconfident classifications, a decision ...
متن کاملCharacteristics and Mechanical Properties of Bypass-Current MIG Welding-Brazed Dissimilar Al/Ti Joints
Abstract—Joining of 1mm thick aluminum 6061 to titanium TC4 was conducted using Bypass-current MIG welding-brazed, and stable welding process and good bead appearance were obtained. The Joint profile and microstructure of Ti/Al joints were observed by optical microscopy and SEM and then the structure of the interfacial reaction layers were analyzed in details. It was found that the intermetalli...
متن کاملGraphite Phase Formation in Al Alloyed Ductile Irons
The influence of aluminum, within the range of 0.08 - 6.16 wt.%, on the microstructure and hardness of as-cast ductile cast iron has been studied. A number of irons of different composition have been made by green sand casting and gravity die casting of appropriate design to provide the experimental materials. It has been found that Al addition and higher cooling rates in permanent mould castin...
متن کاملToughening Mechanisms in Nanolayered MAX Phase Ceramics—A Review
Advanced engineering and functional ceramics are sensitive to damage cracks, which delay the wide applications of these materials in various fields. Ceramic composites with enhanced fracture toughness may trigger a paradigm for design and application of the brittle components. This paper reviews the toughening mechanisms for the nanolayered MAX phase ceramics. The main toughening mechanisms for...
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ژورنال
عنوان ژورنال: Metallurgical and Materials Transactions A
سال: 2009
ISSN: 1073-5623,1543-1940
DOI: 10.1007/s11661-009-9818-0