CAJ | 학술논문

通过开发用于组织模拟的用户程序，采用有限元软件DEFORM-3D模拟AM50镁合金多道次热轧过程中的组织转变，并通过与实验结果的对比分析证明该用户程序模拟多道次轧制的可行性。结果表明：多道次热轧有助于镁板的晶粒细化及均匀再结晶组织的获得，精轧前的板坯温度对终轧后的晶粒尺寸影响很大，但对晶粒尺寸的分布情况影响不明显。开发的用户程序亦可应用于其他类型多道次热变形过程的模拟研究。
통과개발용우조직모의적용호정서，채용유한원연건DEFORM-3D모의AM50미합금다도차열알과정중적조직전변，병통과여실험결과적대비분석증명해용호정서모의다도차알제적가행성。결과표명：다도차열알유조우미판적정립세화급균균재결정조직적획득，정알전적판배온도대종알후적정립척촌영향흔대，단대정립척촌적분포정황영향불명현。개발적용호정서역가응용우기타류형다도차열변형과정적모의연구。
The microstructure simulation during the multi-pass hot rolling of AM50 alloy was studied by DEFORM-3D. The excellent agreement with the experiment observations shows that the present modeling and user routine are feasible for the reproduce of the hot rolling process. The multi-pass hot rolling contributes to the achievement of a uniformly recrystallized microstructure with fine grains in the rolled sheet. The sheet temperature before the finish rolling strongly affects the final grain size, but hardly affects the grain size distribution. This modeling and the user routine also have a potential to be applied in the researches of the other multi-pass hot deformation process.