粒状镍合金的高温变形

IF 1 4区物理与天体物理 Q4 PHYSICS, APPLIED

High Temperature Pub Date : 2024-03-22 DOI:10.1134/s0018151x2306007x

D. R. Abashev, V. S. Bondar, P. O. Dikovitskyi, S. V. Morozov, O. E. Larionova

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引用次数: 0

摘要

摘要通过对粒状镍合金在高温条件下的粘塑性行为进行数学建模，并基于流动理论和组合硬化，提出了热粘塑性理论的变体。热粘塑性理论的变体被推广到非等温加载以及加载过程对应变速率的依赖性。文中介绍了在高温和各种应变速率下对粒化镍合金圆柱形样品进行单轴拉伸的实验结果。计算得出的粘塑性应变图与实验得出的应变图进行了比较。计算结果和实验结果之间的一致性令人满意，这表明这种变体热粘塑性理论和方法足以确定材料参数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

High-Temperature Deformation of a Granulated Nickel Alloy

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High-Temperature Deformation of a Granulated Nickel Alloy

Abstract

A variant of thermoviscoplasticity theory is proposed, by mathematical modeling of the viscoplastic behavior of a granulated nickel alloy under high-temperature conditions and based on flow theory with combined hardening. The variant of thermoviscoplasticity theory is generalized to nonisothermal loading and the dependence of the loading process on the strain rate. The results of experiments on uniaxial tension for cylindrical samples of a granulated nickel alloy at high temperatures and various strain rates are presented. The calculated viscoplastic strain diagrams are compared with experimental ones. Satisfactory agreement between the calculated and experimental results is observed, which indicates the adequacy of this variant thermoviscoplasticity theory and the method for identifying the material parameters.

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来源期刊

High Temperature 物理-物理：应用

CiteScore

1.50

自引率

40.00%

发文量

审稿时长

4-8 weeks

期刊介绍： High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.