clase de metalurgia

Introducción a conceptos básicos de:

METALURGIA DE LA SOLDADURA
Por:

Jimy Unfried Silgado, PhD.

Identificación de Procesos – Conceptos básicos

Charco de soldadura – Conceptos básicosPhysical processes involved in welding and driving forces in weld pool fluid flow [1]. (b) Model:
physical processes and simplified ellipsoid moving heat source included in the present finiteelement models. - See more at: http://www.ansto.gov.au/ResearchHub/IME/Projects/SINAP/index.htm#sthash.U30pKark.dpuf

¿Qué ocurre en la zona fundida?

Solidificación – Conceptos básicosSolidificación – Conceptos básicos

k1
CS and CL both decrease as temperature T of
the S/L interface drops during solidification.

Solidificación – Conceptos básicos
Solute redistribution duringsolidification
with complete diffusion in solid and liquid:
(a) phase diagram; (b) CL( fs) and CS( fs); (c)
composition profiles in solid
and liquid.

1. Complete Diffusion in Solid and Liquid.
2. NoSolid Diffusion and Complete Liquid
Diffusion.
3. No Solid Diffusion and Limited Liquid
Diffusion.

Solidificación – Modos

(a) planar solidification, (b) cellular solidification, (c)columnar dendritic, (d) equiaxed dendritic

Solidificación – Conceptos básicos
Superenfriamiento constitucional

Solidificación – Conceptos básicos
Effect of constitutional supercooling onsolidification mode: (a) planar; (b) cellular; (c)
columnar dendritic; (d) equiaxed dendritic (S,
L, and M denote solid, liquid, and mushy zone,
respectively).

Effect of temperature gradient G and growthrate R
on the morphology and size of solidification
microstructure.

Solidificación – Conceptos básicos

Solidificación – Conceptos básicos
Competitive growth in bulk fusion zone.Epitaxial growth of weld metal near fusion line.

Solidificación – Conceptos básicos

By: J. Unfried-Silgado

Solidificación – Conceptos básicos
Microstructure characterization

Cellular
g:...