Significance of temperature increase in processing by high-pressure torsion
Significance of temperature increase in processing by high-pressure torsion
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DOI：
10.1016/j.msea.2011.06.031
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发表时间：
2011-09-15
期刊：
影响因子：
6.4
通讯作者：
Pippan, Reinhard
中科院分区：
文献类型：
--
作者：
Edalati, Kaveh;Miresmaeili, Reza;Pippan, Reinhard
通过实验和有限元模拟，测量了高压扭转加工圆盘样品时的温升。选择铝、铜、铁和钼作为模型材料。温度在应变的早期阶段增加，但在大应变时饱和到稳态水平。温度的升高与硬度和转速成比例，并且在较高的施加压力下更高，并且在距盘中心较大的距离下略高。(C)2011 Elsevier B.V.保留所有权利。
Experiments and finite element simulations were conducted to measure the temperature increase in processing disc samples by high-pressure torsion. Aluminum, copper, iron and molybdenum were selected as model materials. The temperature increases at the early stages of straining but saturates to steady-state levels at large strains. The increase of temperature is proportional to the hardness and rotation speed and is higher at higher imposed pressures and is somewhat higher at larger distances from the disc center. (C) 2011 Elsevier B.V. All rights reserved.