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The primary issue in arc melting additive manufacturing is the high heat input, which results in stress and deformation, significantly affecting the microstructure. Factors such as temperature gradient, solidification rate, and sub-cooling of the layer play a crucial role. Techniques to manage these factors include auxiliary outfield, auxiliary plastic deformation, and heat treatment. The microstructure's key characteristics, such as grain size, orientation, and distribution, determine yield strength, hardness, strength, and flexibility. External fields can enhance sample performance through work hardening, fine grain, and dispersion strengthening.
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Journal of Advances Mechanical Science and Technology
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