對於立方晶系之金屬，退火過後的立方取向織構為非常常見的現象，對於立方取向能夠主導退火後的織構至今仍然是被廣泛討論的對象，對於立方取向能夠在退火過程中主導的原因，部分學者認為主要來自於立方晶體特殊的對稱性，能夠在恢復過程輕易恢復擁有相對較低的應變能以及在軋制過程中屬於少數取向而不容易遇到紮釘效應等因素，使其能夠有比其他取向較早成核或者較容易大量成核，以此來主導退火過後的最終織構，因此目前普遍認為退火前立方取向必定存在，然而對於退火前立方取向的來源並未有足夠充分的討論。
本研究聚焦於透過模擬方法來追溯冷軋過程中立方取向的產生原因，並討論過程立方取向成核的機率以及最終退火過後立方取向晶粒佔據最終織構與否的原因，目標在建立完整的立方取向演化過程，為此本研究使用了VPSC以及CA之耦合模型來進行冷軋後退火之熱機製程，並且分別使用了取向隨機生成的多晶系統以及包含了所有取向晶粒之多晶系統進行模擬，並且進行了過程中旋轉路徑的分析，以及退火過程成核機率的評估。模擬結果顯示，立方取向在冷軋過程並非穩定取向，會隨著軋延率的增加而越容易旋轉離開當前的立方取向，並且過程中沒有外來取向的晶粒會朝向立方取向旋轉，但由於立方取向的發散過程非常緩慢，因此在冷軋過後仍然會有剩餘的立方晶粒，並且根據分析，之後在後續的退火過程中由於能量以及不易受到阻礙的關係，殘存的立方晶粒有較高的機率在時間內完成成核，並且在生長過程中有充分時間來增長尺寸因而取得優勢，本研究透過追蹤立方取向晶粒在熱機過程中之來源、存活原因以及佔據優勢之理由，以建構立方取向於熱機製程之完整演化過程。

The dominance of the Cube orientation texture in annealed cubic metals is widely observed, yet its exact origin during the preceding deformation stage remains insufficiently discussed. While its final dominance is generally attributed to rapid recovery, low strain energy, and minimal orientation-pinning effects, the source of these pre-existing Cube grains requires further investigation. This study traces the origin, survival, and eventual dominance of the Cube orientation to establish a comprehensive evolutionary framework. We employed a coupled Visco-Plastic Self-Consistent and Cellular Automaton (VPSC-CA) model to simulate the entire thermomechanical process—cold rolling followed by annealing—across various polycrystalline systems.
Simulation results reveal that the Cube orientation is unstable during cold rolling; as rolling reduction increases, initial Cube grains gradually rotate away, with no external grains rotating into this state. However, because this divergence process is exceptionally slow, a fraction of residual Cube grains survives the deformation. During subsequent annealing, these residual grains leverage their high stored energy and reduced pinning effects, granting them a significant nucleation advantage. This early nucleation provides ample growth time, allowing the Cube orientation to ultimately dominate the recrystallization texture.

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