This research uses shielded metal arc welding (SMAW) method combined with flux core art (FCAW) using ASTM A36 10 mm steel material and double V seam. Then the electrode used in this study is for SMAW E7018 welding. , while FCAW E71T1 The current variations are 60A, 75A, 90A 190A, 205A, 220A. purpose of to determine optimal that produces highest tensile impact strength differences microstructure...

continuous grain-boundary cementite can form and cause THE primary requirements for high-strength wire appliembrittlement.[4,5] Nevertheless, we have found that it is cations are tensile strength, ductility, and formability. Coldpossible to use pearlitic steels with carbon contents greater drawn plain-carbon pearlitic steels have commonly been than 0.8 wt pct without the formation of a continuo...

This research studied the application of the response surface methodology (RSM) and central composite design (CCD) experiment in mathematical model and optimizes postweld heat treatment (PWHT). The material of study is a pressure vessel steel ASTM A516 grade 70 that is used for gas metal arc welding. PWHT parameters examined in this study included PWHT temperatures and time. The resulting mater...

Grain refinement through severe plastic deformation enables synthesis of ultrahigh-strength nanostructured materials. Two challenges exist in that context: First, deformation-driven grain refinement is limited by dynamic dislocation recovery and crystal coarsening due to capillary driving forces; second, grain boundary sliding and hence softening occur when the grain size approaches several nan...

The aim of the present research is to simulate the heat treatment process of the autogenous grinding (AG) shell liner of Cr-Mo steel in different quenching media (still air, air blowing, oil and water) using ABAQUS software, in order to calculate the cooling curves. In this regard, the microstructure and hardness for each arbitrary point within the mill liner's bulk could be predicted based on ...

Non-uniform cooling conditions within a casting lead to locally differing microstructures, which result in locally differing mechanical properties. These have a tremendous impact on the behavior of the parts under their application load conditions and regarding their life time. The virtual development of castings can, therefore, only be effective when the process simulation is integrated into i...