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    陈建华, 张喜燕, 刘攀, 蓝秀琼, 刘兴智. 低碳微合金钢中碳化钛的等温析出行为[J]. 机械工程材料, 2014, 38(5): 48-51.
    引用本文: 陈建华, 张喜燕, 刘攀, 蓝秀琼, 刘兴智. 低碳微合金钢中碳化钛的等温析出行为[J]. 机械工程材料, 2014, 38(5): 48-51.
    shu
    CHEN Jian-hua, ZHANG Xi-yan, LIU Pan, LAN Xiu-qiong, LIU Xing-zhi. Isothermal Precipitation of TiC in Low Carbon Micro-alloyed Steel[J]. Materials and Mechanical Engineering, 2014, 38(5): 48-51.
    Citation: CHEN Jian-hua, ZHANG Xi-yan, LIU Pan, LAN Xiu-qiong, LIU Xing-zhi. Isothermal Precipitation of TiC in Low Carbon Micro-alloyed Steel[J]. Materials and Mechanical Engineering, 2014, 38(5): 48-51.
    shu

    低碳微合金钢中碳化钛的等温析出行为

    Isothermal Precipitation of TiC in Low Carbon Micro-alloyed Steel

      摘要
    • 摘要: 采用电阻法和透射电镜观察等方法测定了含钛0.088%微合金钢中碳化钛(TiC) 的等温析出(PTT)曲线, 分析了其析出行为。结果表明: 在γ→α转变区的530～630 ℃范围内, TiC析出速率最大; 在高温固溶及等温析出条件下, TiC在奥氏体中以针状析出, 而在铁素体中呈相间或弥散析出; 在530～630 ℃温度区间等温, 可得到最好析出强化效果。

       

      Abstract: The isothermal precipitation (PTT) curves of TiC in 0.088%Ti micro-alloyed steel were tested by resistance measurement and TEM observation, the precipitation behaviors were analyzed. The results show that the largest precipitation rate of TiC was in the temperature range of 530-630 ℃ in γ→α transformation. In the condition of high temperature solid solution and isothermal precipitation, TiC precipitated as needle shape in austenite while as interphase or dispersive precipitation in ferrite. The best precipitation strengthening was found when TiC isothermally precipitated at 530-630 ℃.

       

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