Slag Inclusion

slag inclusion

[′slag in′klü·zhən]
(metallurgy)
Slag entrapped in solidified metal.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Slag Inclusion

 

a defect in metal intermediate and finished products made primarily by rolling or forging. Slag inclusions are elongated accumulations of nonmetallic inclusions, from several millimeters to several centimeters in length; they usually form in the metal during pouring. They are arranged in the direction of the predominant flow of the metal upon deformation (mainly, on the surface of the metal or in the adjacent layers). Slag inclusions are removed mechanically, for example, by chiseling, flame treatment, and other methods.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

slag inclusion

A nonmetallic solid material which is trapped within a weld.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Higher percentage of slag inclusion does not necessarily guarantee greater strength increase, as generally perceived and assumed in soil solidification.
Subsequent radiography confirmed the presence of this defect, which is believed to be a slag inclusion (Marron and Kosnik, 2008).
You will learn about: Alloy and Treatment Process Optimization for quality ductile iron production; controlling slag inclusion; opportunities for heat recovery in the cupola furnace plant; effective slag control in a coreless furnace; refractory and repair reline of channel furnaces and slag sampling and testing
Figure 1 shows a liquid slag inclusion where sand grains have been embedded in the slag material, creating a liquid sand-slag agglomerate.
Discontinuities in iron castings include microshrinkage porosity, gas porosity, oxide films, slag inclusions, coarse graphite particles, nodule clustering, degenerate graphite, flake graphite at the cast surface, and other issues.
Additionally, impurities like slag inclusions collect at the inside bore of the pipe which is usually machined.
Slag inclusions occur when the slag gets trapped inside of the weld metal, which could weaken weld components and reduce serviceability.
Second, since the ESR process has a considerable capability for the removal of large refractory or slag inclusions, the use of complex filters and tundish arrangements in the VIM can be minimised.
They cover component casting, cast house processes, casting hydrodynamics, heat transport during component casting and cast house processes, structure and structure formation in cast materials, microsegregation in alloys, heat treatment and plastic forming, precipitation of pores and slag inclusions during the casting process, solidification and cooling shrinkage of metals and alloys, and macrosegregation in alloys.
Puddled iron -- the material used byBartholdi and Eiffel -- is relatively soft and contains a high proportion of slag inclusions, silica fragments and other impurities.
However, the action of the magnetic field at induction of more than 0.2 T leads to the noticeable deterioration in the quality of a lateral surface of the ingot and appearance of slag inclusions at the ingot periphery (Figure 3).