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QUANTITATIVE RESEARCH ON THE STRENGTH AND MICROSTRUCTURE IN TRACE-Ti-BEARING STRUCTURE STEEL WITH DIFFERENT COOLING TECHNIQUES

QUANTITATIVE RESEARCH ON THE STRENGTH AND MICROSTRUCTURE IN TRACE-Ti-BEARING STRUCTURE STEEL WITH DIFFERENT COOLING TECHNIQUES
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摘要 Aim: To study the strength and microstructure of trace-Ti-bearing stracture steel. Materials and Methods: The strength and microstructure of the trace Ti bearing structure steel were studied by two kinds of controlled cooling simulation testing results in the first stage cooling and the last stage cooling after hot press deformation in the traceTi-bearing structure steel. Results: It showed that the ferrite grain size, the relative contribution of the involved strength and the mechanical strength were influenced more or less by different cooling rates. Both the refinement of ferrite grain and the increase of mechanical strength could be obtained by the proper decrease of water cooling interruption temperature (WTI) and coiling temperature (CT) in the first stage cooling or the proper increase of water cooling beginning temperature (WTB) and proper decrease of coiling temperature (CT) in the last stage cooling. Conclusion: The strength, the ferrite grain refinement and the yield tensile ratio in the first stage cooling process are much better than those in the last stage cooling process. Aim: To study the strength and microstructure of trace-Ti-bearing stracture steel. Materials and Methods: The strength and microstructure of the trace Ti bearing structure steel were studied by two kinds of controlled cooling simulation testing results in the first stage cooling and the last stage cooling after hot press deformation in the traceTi-bearing structure steel. Results: It showed that the ferrite grain size, the relative contribution of the involved strength and the mechanical strength were influenced more or less by different cooling rates. Both the refinement of ferrite grain and the increase of mechanical strength could be obtained by the proper decrease of water cooling interruption temperature (WTI) and coiling temperature (CT) in the first stage cooling or the proper increase of water cooling beginning temperature (WTB) and proper decrease of coiling temperature (CT) in the last stage cooling. Conclusion: The strength, the ferrite grain refinement and the yield tensile ratio in the first stage cooling process are much better than those in the last stage cooling process.
出处 《中国体视学与图像分析》 2002年第3期129-134,共6页 Chinese Journal of Stereology and Image Analysis
关键词 生物材料 结构钢 控制冷却 强度 显微结构 Trace-Ti-bearing structure steel controlled cooling strength
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参考文献6

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