动态与静态退火对Ni5W合金基带织构转变的影响

Influences on Texture Transformation in Ni5W Alloy Substrates with Dynamic and Static Annealing

摘要:

利用卷到卷动态退火方法热处理Ni5W合金长带和实验室常规静态方法热处理Ni5W基带短样的过程中各晶体取向含量的变化规律存在明显的差异。研究发现,长带动态热处理过程较大的升温速率使Cube形核不足后续长大迟缓,Cube取向含量的增长一度趋于停滞,同时S取向含量出现不降反升的现象,随着温度的进一步升高Cube取向含量急速增长。常规静态热处理过程进行保温处理充分发挥Cube取向形核优势和长大优势,基带在形核阶段获得大量的Cube晶核,随着温度的升高Cube晶核快速长大。实验探究长带动态热处理方法和常规静态热处理方法之间的联系,指导长带的动态再结晶退火,推进实验室短样研究向长带产业化的转变。

Abstract:

The laws of the crystal orientation in the annealing process of Ni5W long tapes by the reel-to-reel method and Ni5W short tapes by the static method in laboratory are obvious differences. It finds that, with higher heating rate of dynamic annealing process, the formation of Cube nuclei is insufficient and growth of Cube nuclei is slow. Meanwhile, Cube orientation fraction stops growing and S orientation fraction doesn’t decrease at some point, and Cube orientation fraction growths rapidly with further increase of temperature. With the insulation heat treatment, Cube orientation nucleation and growth advantage are show in static annealing process. In the nucleation stage, many Cube nuclei are obtained, and Cube nuclei grow rapidly with the increase of temperature. The relationship between the reel-to-reel method and the static method were studied for guiding the recrystallization annealing of long tapes which helps the transformation of the study of the short tapes to the industrialization of the long tapes.