Al-Cr3C2复合预制件致密化变形实验研究

Naga Venkata Srinivas Borra, Veera Venkata Krishna Prasad Davuluri
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引用次数: 1

摘要

本文研究了烧结铝铬碳化物成分(Al-Cr3C2含量分别为2,4和6%)预坯在镦粗条件下的应变硬化、致密化和可加工性。工业从业者需要可加工性数据和致密化机制来计划和设想失效应变。在本研究中,在三轴应力状态下,压缩了具有初级预制体密度和不同长径比的Al-Cr3C2预制体。通过逐渐增大载荷直至断裂,研究了碳化铝铬合金的应变硬化、致密化行为。研究了Cr3C2在Al中添加的效果以及长径比对成形性能的影响。考察了应力比、瞬时变应变率、加工硬化指数、瞬时密度系数和获得的致密化参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental Investigations of Al-Cr3C2 Composite Preform Densification and Deformation
This investigation on strain hardening, densification and workability of the Sintered aluminium- Chromium Carbide composition of (Al-Cr3C2 of 2, 4 and 6%) preforms subjected to upsetting were investigated in this research. Industrial practitioners needed the workability data and densification mechanisms to plan and envisage the failure strains. In the current study, under triaxial stress state conditions Al-Cr3C2 preform with primary preform densities and various aspect ratios were compressed. Strain hardening, densification behaviors of aluminium- Chromium Carbide be investigated by gradually increasing the load till the fracture occurs. The outcome of adding Cr3C2 to Al and the impact of aspect ratio on formability was also extensively investigated. We looked at the parameters of stress ratio, instant varying strain rate, work hardening exponent, instantaneous density coefficient and densification attained.
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