钛对非调质塑料模具钢奥氏体晶粒长大规律的影响
发布时间：2018-08-07 17:47
【摘要】：汽车和家电行业对高品质大截面塑料模具钢的需求量逐渐增大,但随着塑料模具钢截面厚度的增大,其出现粗晶的可能性也增大,这使得合理的热处理工艺设计显得尤为重要。通过添加钛来抑制高温处理过程中奥氏体晶粒的长大行为,并着重研究微合金钛元素对非调质塑料模具钢奥氏体晶粒长大的影响规律。研究发现,含0.03%钛的非调质塑料模具钢在均质化温度高于1 050℃时具有较好的抗晶粒粗化能力,原因是组织中晶界附近存在一定量的以Ti(C,N)为主的析出相。通过以上研究建立了奥氏体晶粒长大模型,该模型可有效预测非调质塑料模具钢高温均质化过程中的奥氏体晶粒长大规律。
[Abstract]:The demand for high quality and large section plastic die steel in automobile and household electrical appliance industry increases gradually, but with the increase of cross section thickness of plastic die steel, the possibility of coarse-grained plastic die steel also increases, which makes reasonable heat treatment process design especially important. The austenite grain growth behavior during high temperature treatment was inhibited by adding titanium, and the effect of microalloyed titanium element on austenite grain growth of non-quenched plastic die steel was studied. It is found that the non-quenched plastic die steel containing 0.03% titanium has a good resistance to grain coarsening when the homogenization temperature is higher than 1050 鈩，
本文编号：2170845
[Abstract]:The demand for high quality and large section plastic die steel in automobile and household electrical appliance industry increases gradually, but with the increase of cross section thickness of plastic die steel, the possibility of coarse-grained plastic die steel also increases, which makes reasonable heat treatment process design especially important. The austenite grain growth behavior during high temperature treatment was inhibited by adding titanium, and the effect of microalloyed titanium element on austenite grain growth of non-quenched plastic die steel was studied. It is found that the non-quenched plastic die steel containing 0.03% titanium has a good resistance to grain coarsening when the homogenization temperature is higher than 1050 鈩，
本文编号：2170845
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