Welding of 2 1/4Cr-1Mo Steel (Report 2)

Analysis of welding in comparable steel grades

Childhood Pemphigus: Report of 2 cases

Pemphigus is rare in children, only 71 cases have been reported in literature. We report 2 cases of pemphigus vulgaris (13 and 15 years old) among 147 cases of pemphigus from Khouzestan who were admitted to the Department of Dermatology, Ahwaz Medical University between 1989-2001. The basis of diagnosis was clinical and histopathological findings in each patient. One patient was treated only wi...

Pleuropulmonary Blastoma: Report of 2 Cases

Pleuropulmonary blastoma (PPB) is a rare, malignant intrathoracic tumor that occurs mostly in children before 5 years old. It consists about 15% of all primary pediatric pulmonary tumors and shows various mesenchymal components. Its presentations are nonspecific and common symptoms include fever, cough, chest pain, respiratory distress, and pulmonary infection. PPB should be considered in the ...

Dissimilar Welding of EN 10025 Carbon Steel to AISI 316L Stainless Steel by Friction Stir Welding

In the present Study, a dissimilar joint of carbon steel sheet EN 10025 with 316 L has been welded by FSW and the welding parameters were optimized by RSM software method. For investigation of mechanical properties and microstructural analysis carried out by using optical, scanning electron microscopes with EDS analysis, tensile and hardness test of different area of joints, SZ, TMAZ, HAZ, thei...

Analyzing the characteristics of the cavity nucleation, growth and coalescence mechanism of 9Cr-1Mo-VNb steel (P91) steel

Creep damage is one of the serious problems for the high temperature industries and computational approach (such as continuum damage mechanics) has been developed and used, complementary to the experimental approach, to assist safe operation. However, there are no ready creep damage constitutive equations to be used for predicting the lifetime for this type of alloy, particularly for low stress...