| Summary: | 碩士 === 國立成功大學 === 材料科學及工程學系 === 104 === Four kinds of strain tensor in shear bands and full-constraint Taylor model were combined to simulate the texture inside shear bands on B.C.C. (111) [112 ̅] single crystals. Orientation inside shear bands rotates along ±TD while only one slip system {110}〈111〉 or {112}〈111〉 is activated. Random texture inside shear bands are observed assuming one slip system ({123}〈111〉), two slip systems ({110}〈111〉 and {112}〈111〉, {110}〈111〉 and {123}〈111〉, {112}〈111〉 and {123}〈111〉) and three slip systems ({110}〈111〉, {112}〈111〉 and {123}〈111〉).
Also, simulations were done on polycrystalline B.C.C. by full-constraint Taylor model. The complete -fiber are shown under 60% reduction ratio assuming two slip systems ({110} 〈111〉 and {112} 〈111〉, {110}〈111〉 and {123} 〈111〉) and three slip system ({110}〈111〉, {112}〈111〉 and {123}〈111〉).
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