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| INFLUENCE OF MORPHOLOGY AND DISTRIBUTION OF FERRITE ON FRACTURE BEHAVIOR OF LOW-CARBON STEEL AT LOW TEMPERATURE |
| HUANG Zheng; YAO Mei; FAN Yinglong (Harbin Institute of Technology); LI Chunzhi (Institute of Aeronautical Materials; Beijing); HAN Yuanlong (Research Institute of Anshan Iron and Steel Company) (Manuscript received 20 January; 1986; revised manuscript 12 July; 1986) |
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Cite this article:
HUANG Zheng; YAO Mei; FAN Yinglong (Harbin Institute of Technology); LI Chunzhi (Institute of Aeronautical Materials; Beijing); HAN Yuanlong (Research Institute of Anshan Iron and Steel Company) (Manuscript received 20 January; 1986; revised manuscript 12 July; 1986). INFLUENCE OF MORPHOLOGY AND DISTRIBUTION OF FERRITE ON FRACTURE BEHAVIOR OF LOW-CARBON STEEL AT LOW TEMPERATURE. Acta Metall Sin, 1987, 23(3): 223-313.
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Abstract In the present investigation, the influence of morphology and distribution of ferrite, especially the acicular ferrite in Widmansttten structure, on fracture behavior of low-carbon steel 16Mn at low temperature was discussed in detail. The microstructures of polygonal ferrite, intersecting aeicuiar ferrite and parallel aeicular ferrite were obtained by using interrupted-cooling procedure.If the arrangement is characterized by intersecting, the steel would possess the superior toughness at low temperature in comparison with that of polygonal ferrite. If the microstructure is mainly composed of parallel acicular ferrite, however, it would deteriorate the steel toughness.
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Received: 18 March 1987
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