نتایج جستجو برای: stabilization and solidification

تعداد نتایج: 16838807  

2017
Chao Ma Lianyi Chen Chezheng Cao Xiaochun Li

Effective control of melting and solidification behaviours of materials is significant for numerous applications. It has been a long-standing challenge to increase the melted zone (MZ) depth while shrinking the heat-affected zone (HAZ) size during local melting and solidification of materials. In this paper, nanoparticle-induced unusual melting and solidification behaviours of metals are report...

2002
C. MAPELLI M. VEDANI A. ZAMBON

−− An experimental study on solidification structure development and on endogenous inclusion precipitation in a continuously cast resulphurised steel is presented. Results were obtained by investigating two heats of a free cutting C-Mn steel cast in billets with a diameter of 145 mm. The as cast structure was evaluated by macroand microscopic analyses. Primary and secondary dendrite arm spacing...

Mirsalehi, S. E. , Shamsipoor, A. , Tazikeh, H. ,

In this research, the effect of bonding temperature on the microstructure and mechanical properties of Inconel 939 super alloy by transient liquid phase bonding method. For this purpose, the middle layer of MBF20 with a thickness of 50 microns and three temperatures of 1060 °C, 1120 °C, 1180 °C and a time of 45 minutes have been used. In order to evaluate the microstructure, a scanning electron...

2009
Xiaoxia Li Thomas A. Hamilton Justin Hartupee Caini Liu Michael Novotny Dongxu Sun

Journal: :international journal of iron & steel society of iran 2006
m. alizadeh h. edris a. shafyei

heat transfer mechanisms and the solidification process are simulated for a continuous casting machine and the geometric shape of the liquid pool is predicted considering different conditions. a heat transfer and solidification model is described for the continuous casting of steel slabs. the model has been established on the basis of the technical conditions of the slab caster in the continuou...

2016
A. G. Kostryzhev C. D. Slater O. O. Marenych C. L. Davis

In steels the dependence of ambient temperature microstructure and mechanical properties on solidification rate is not well reported. In this work we investigate the microstructure and hardness evolution for a low C low Mn NbTi-microalloyed steel solidified in the cooling rate range of 1-50 Cs-1. The maximum strength was obtained at the intermediate solidification rate of 30 Cs-1. This result h...

2017
Mohsen Asle Zaeem

Solidification occurs in several material processing methods, such as in casting, welding, and laser additive manufacturing of metals, and it controls the nanoand microstructures and the overall properties. Recent advances in experimental and computational modeling techniques have made it possible to more e ectively study atomistic and microscale mechanisms that control the solidification struc...

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