【摘要】 研究了直流电场作用下 K417G镍基高温合金凝固组织的变化。实验结果表明 :电场作用改变了枝晶组织的生长形态和碳化物的形貌 ,并引起了凝固组织择优生长取向的变化及第二相的分布和形态的变化。提出了电场作用造成上述结果的机理更多还原

【Abstract】 The effect of a DC electric field on the solidified microstructure of nickel based superalloy K417G is studied The experiment results show that the electric field causes the changes of the morphologies of dendrites and carbides, and the changes of the preferred orientation, morphology, and distribution of the precipitated gamma prime phase The mechanism of the mentioned results produced by the electric field is discussed更多还原