Abstract Experiments were conducted to evaluate the evolution of the stored energy in grains with shear texture orientations A 1 ⁎ {111} 1 1 2>, A 2 ⁎ {111} 2 1>, A {111} 1 0>, A {111} 1 1>, B {112} 1 0>, B {112} 1 0> and C {100} for Cu-2.5Ni-0.6Si and Fe-36Ni (wt.%) alloys after high-pressure torsion (HPT) processing up to 10 turns at ambient temperature using a Kernel Average Misorientation (KAM) approach. A typical stable shear texture developed in the Cu-2.5Ni-0.6Si alloy immediately after 1 turn whereas there was a continuous transformation of texture in the Fe-36Ni alloy up to 10 turns. The results show that HPT processing produces similar stored energies of ~35 J/mol and ~24 J/mol but with the different shear texture components for the Cu-2.5Ni-0.6Si and the Fe-36Ni alloy, respectively. The stored energy in all shear components for the Cu-2.5Ni-0.6Si alloy increases with increasing HPT processing up to 1 turn and then slightly decreases through 10 turns. By contrast, the stored energy of the Fe-36Ni alloy continuously decreases with increasing numbers of HPT turns. These evolutions are examined with reference to the initial textures, dynamic recrystallization, grain refinement mechanisms and differences in the stacking fault energies.

中文翻译：

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高压扭转加工的Cu-Ni-Si和Fe-Ni合金中具有剪切织构取向的晶粒的储能分析

摘要 进行实验以评估具有剪切织构取向 A 1 ⁎ {111} 1 1 2>, A 2 ⁎ {111} 2 1>, A {111} 1 0>, A {111 } 1 1>, B {112} 1 0>, B {112} 1 0> 和 C {100} 对于 Cu-2.5Ni-0.6Si 和 Fe-36Ni (wt.%) 合金在高压扭转 (HPT) 后) 使用内核平均方向错误 (KAM) 方法在环境温度下处理多达 10 圈。Cu-2.5Ni-0.6Si 合金在转 1 圈后立即出现典型的稳定剪切织构，而 Fe-36Ni 合金织构连续转变达 10 圈。结果表明，HPT 处理产生的储能相似，分别为~35 J/mol 和~24 J/mol，但分别对 Cu-2.5Ni-0.6Si 和 Fe-36Ni 合金具有不同的剪切织构成分。Cu-2.5Ni-0.6Si 合金的所有剪切组分中的储存能量随着 HPT 处理增加至 1 圈而增加，然后在 10 圈后略有下降。相比之下，Fe-36Ni 合金的储存能量随着 HPT 匝数的增加而不断降低。参考初始织构、动态再结晶、晶粒细化机制和层错能的差异来检查这些演变。