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blowholes

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130151
EISBN: 978-1-62708-284-6
... for subsurface porosity defects are nitrogen and hydrogen. Types of Gas Porosity Defects Behavior of Gases How to Treat Pinhole and Blowhole Problems This type of porosity has a rough, irregular shape. It is caused by a lack of adequate feed metal during solidification. This defect is an internal...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... of inspection to castings can be divided into the following three categories: Detecting near-surface flaws such as cracks, voids, inclusions, blowholes, and pinholes (eddy current inspection) Sorting according to alloy, temper, electrical conductivity, hardness, and other metallurgical factors...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050175
EISBN: 978-1-62708-311-9
... are blowholes or gas holes, which may appear as subsurface voids. These voids can cause nonuniform heating and hot spots. Inclusions ( Fig. 9.4a ) may occur from spatter (entrapped splashes) during the pouring of the steel into the mold. They are elongated during rolling and are usually subsurface...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850001
EISBN: 978-1-62708-260-0
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560081
EISBN: 978-1-62708-291-4
...) are occasionally located in the junction region ( Fig. 5.1 (Part 2) i ). These regions result from blowholes originally present at the rim/core junction of the ingot that have welded up during hot rolling. Fig. 5.1 (Part 2) Rimming grade 0.2% C mild steel. (a) Hot-rolled bar. Ammonium persulfate. 2×. (b...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240349
EISBN: 978-1-62708-251-8
... to produce carbon monoxide according to Eq 19.2 . Since steel solidifies over a range of temperatures, gases evolving from the solidifying metal are trapped at the solid-liquid interfaces, producing porosity known as blowholes. The amount of oxygen dissolved in the liquid steel just before casting can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740001
EISBN: 978-1-62708-308-9
... evolving from the solidifying metal are trapped at the solid-liquid interfaces, producing porosity known as blowholes. The amount of oxygen dissolved in the liquid steel just before casting can be controlled by adding deoxidizing agents such as aluminum or ferrosilicon. Depending on the amount of gases...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980141
EISBN: 978-1-62708-342-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.9781627082587
EISBN: 978-1-62708-258-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.9781627083423
EISBN: 978-1-62708-342-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.9781627082600
EISBN: 978-1-62708-260-0