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Development of hot rolled ship plate with high strength and high toughness

  • Xiang Dong Huo
  • , Lin Guo
  • , Jin Song Feng
  • , Chao Luo
  • , Jun Qu
  • Jiangsu University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A new hot-rolled ship plate with high strength and high toughness is successfully developed through chemical composition design and TMCP process. Experimental methods, such as OM, TEM and X-EDS, were used to study the microstructure and precipitates of steel. The primary microstructural constituent is acicular ferrite, quasi-polygonal ferrite with second constituents along grain boundaries. Lath width of acicular ferrite is about 1μm. Cubic particles about several hundreds nanometers and nanometer particles exist in experimental steel. It can be concluded that acicular ferrite is the main reason for high strength and super toughness. precipitation hardening due to dispersed precipitations of carbonitrides can not be overlooked.

Original languageEnglish
Title of host publicationMaterials Design, Processing and Applications
Pages106-109
Number of pages4
DOIs
StatePublished - 2013
Externally publishedYes
Event4th International Conference on Manufacturing Science and Engineering, ICMSE 2013 - Dalian, China
Duration: 30 Mar 201331 Mar 2013

Publication series

NameAdvanced Materials Research
Volume690 693
ISSN (Print)1022-6680

Conference

Conference4th International Conference on Manufacturing Science and Engineering, ICMSE 2013
Country/TerritoryChina
CityDalian
Period30/03/1331/03/13

Keywords

  • Acicular ferrite
  • Ship plate
  • Strength
  • TMCP
  • Toughness

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