Strain localization in aluminum alloys can cause early failure of the material. Manganese and zirconium dispersoids, often present in aluminum alloys to control the grain size, have been found to be able to homogenize strain. To understand the effects of dispersoids on strain localization, a study of slip bands formed during tensile tests is carried out both experimentally and through simulations using interferometry and discrete dislocations dynamics. Simulations with various dispersoid size, volume fraction, and nature were carried out. The presence of dispersoids is proven to homogenize strain both is the experimental and numerical results.

中文翻译：

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锰和锆分散体对铝合金应变局部化的影响

铝合金中的应变局部化会导致材料过早失效。已发现通常存在于铝合金中以控制晶粒尺寸的锰和锆弥散体能够使应变均匀化。为了了解弥散体对应变局部化的影响，对拉伸试验过程中形成的滑移带进行了研究，既通过实验方法进行，也通过使用干涉术和离散位错动力学的模拟进行了研究。进行了各种分散体尺寸，体积分数和性质的模拟。实验结果和数值结果均表明，分散体的存在使应变均匀。