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Reducing Surface Hot Shortness of Copper-Containing Steels Using Silicon Additions and Controlled Rehaeating Conditions.


PB236269

Publication Date 1974
Personal Author Copeland, M. I.
Page Count 26
Abstract A study was conducted to determine the effect of steel reheating practices in burning natural gas on the amount of silicon required to prevent the formation of copper on steels containing up to 1 wt-pct Cu. Formation of copper, which causes surface hot shortness, was readily prevented by as little as 0.3 wt-pct Si and by 2 vol-pct excess oxygen in the furnace atmosphere when reheating steel containing up to 0.8 wt-pct Cu. The Bureau of Mines sponsored this research effort to improve the recycling capability of copper-containing scrap steels by eliminating the major drawback to their use, the formation of surface cracks during hot working. (Modified author abstract)
Keywords
  • Steels
  • Reclamation
  • Reheating
  • Copper
  • Silicon
  • Scaling
  • Surface defects
  • Metal scrap
  • Brittleness
  • Waste recycling
Source Agency
  • Bureau of Mines
NTIS Subject Category
  • 68C - Solid Wastes Pollution & Control
  • 71J - Iron & Iron Alloys
Corporate Authors Bureau Of Mines, Albany, Oreg. Albany Metallurgy Research Center.
Document Type Technical Report
Title Note Rept. of investigations.
NTIS Issue Number 197425
Reducing Surface Hot Shortness of Copper-Containing Steels Using Silicon Additions and Controlled Rehaeating Conditions.
Reducing Surface Hot Shortness of Copper-Containing Steels Using Silicon Additions and Controlled Rehaeating Conditions.
PB236269

  • Steels
  • Reclamation
  • Reheating
  • Copper
  • Silicon
  • Scaling
  • Surface defects
  • Metal scrap
  • Brittleness
  • Waste recycling
  • Bureau of Mines
  • 68C - Solid Wastes Pollution & Control
  • 71J - Iron & Iron Alloys
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