Why Do Kraft Recovery Boiler Composite Floor Tubes Crack?

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Cracks were first reported in 1992 in co-extruded 304L stainless steel/SA210 Gd Al carbon steel floor tubes of North American black liquor recovery boilers. Since then, a considerable amount of information has been collected on the tube environment, crack characteristics, the stress state of the tubes, and the crack initiation and propagation mechanisms. These studies have identified both operating procedures that apparently can greatly lessen the likelihood of crack formation in the stainless steel layer and alternate materials that appear to be much more resistant to cracking than is 304L stainless.

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Keiser, J.R. October 22, 2001.

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Cracks were first reported in 1992 in co-extruded 304L stainless steel/SA210 Gd Al carbon steel floor tubes of North American black liquor recovery boilers. Since then, a considerable amount of information has been collected on the tube environment, crack characteristics, the stress state of the tubes, and the crack initiation and propagation mechanisms. These studies have identified both operating procedures that apparently can greatly lessen the likelihood of crack formation in the stainless steel layer and alternate materials that appear to be much more resistant to cracking than is 304L stainless.

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  • TAPPI Engineering Conference, Atlanta, GA (US), 09/17/2000--09/21/2000

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  • Report No.: P00-107609
  • Grant Number: AC05-00OR22725
  • Office of Scientific & Technical Information Report Number: 788619
  • Archival Resource Key: ark:/67531/metadc719352

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Office of Scientific & Technical Information Technical Reports

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  • October 22, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • March 30, 2016, 12:03 p.m.

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Keiser, J.R. Why Do Kraft Recovery Boiler Composite Floor Tubes Crack?, article, October 22, 2001; Tennessee. (digital.library.unt.edu/ark:/67531/metadc719352/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.