Effect of Copper and Silicon on Selected Mechanical Properties of Hot-Rolled Medium-Carbon Steels

Details

• Personal Author:
  Copeland, Mark I.
• Description:
  The Bureau of Mines investigated the effect of up to 1 wt-pct of copper and silicon on the heat treatment response and hardness, tensile, and impact properties' of hot-rolled medium-carbon steels. The steels were prepared by induction melting and fabricated into plates by forging and rolling. The tensile strength of 0.2-wt-pct carbon steels containing 0.3 wt-pct silicon was affected significantly by copper in both the hot-rolled and heat-treated (600 deg c) conditions, whereas the tensile strength of the 0.3-wt-pct carbon steels was less affected. A 600 deg c treatment was considered optimum as a post-rolling treatment to strengthen the steels by copper precipitation. Strengthening of 0.2-wt-pct carbon steels by silicon was reduced by increasing copper contents. Optimum impact strengths occurred at about 0.3 wt-pct silicon in 0.2- wt-pct carbon steels containing 0.6 and 0.8 wt-pct copper. The impact strengths were lowest for 0.2-wt-pct carbon steels containing over 0.8 wt-pct copper and greater than 0.3 wt-pct silicon, especially in the heat-treated condition. Copper and silicon solutes and copper precipitates strengthened the steels. This effect was augmented slightly by strengthening through grain refinement by these solutes. [Description provided by NIOSH]
• Subjects:
  Occupational Health Safety
• Series:
  Mining Publications
• Subseries:
  Report of Investigations
• Document Type:
  Text
• Genre:
  Conference Publications ; Case Report
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  ALRC - Albany Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-19
• NIOSHTIC Number:
  nn:10009052
• NTIS Accession Number:
  PB-224090
• Citation:
  NTIS: PB 224 090 :19 pages
• Federal Fiscal Year:
  1973
• Peer Reviewed:
  False
• Source Full Name:
  NTIS: PB 224 090
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c361eb0534c60293b082e79633fb82103f4714a85d0749444f312ff347b8ba640a8804cc64293bfeecfa8efcac5d6d3d699de6cbdd0fb9e3d8528dc5890e1b1c
• Download URL:
  https://stacks.cdc.gov/view/cdc/237459/cdc_237459_DS1.pdf
• File Type:
  [PDF - 8.36 MB ]