Adopted isothermal compression of wedge specimen and combined numerical simulation with modern metallurgy technology, the effect of deformation parameters on microstructure and mechanical property of LD10 was studied.
采用楔形试样等温压缩,结合计算机模拟和现代冶金分析技术,研究了变形参数(变形温度、变形程度)对LD10铝合金微观组织及力学性能影响的规律。
Microstructure characteristic of hat-shaped specimen of two kinds of different component hypoeutectoid steel via different heat treatment was studied on SHPB forced shearing test with different loading velocity.
基于两种不同成分、两种不同热处理状态的亚共析钢的帽型试样强迫剪切实验,在Hopkinson压杆的不同速度加载条件下,研究了材料动态响应的微结构特征,分析了铁素体含量对绝热剪切的影响规律。
Appropriate model and space discretization were chosen to simulate the loading process of specimens conducted on the Split Hopkinson Pressure Bar(SHPB) in two-dimension,and the adiabatic shear deformation course of the hat-shaped specimen under high strain rate was obtained.
通过选择恰当的模型和科学的空间离散化,对SHPB加载过程进行了2D数值模拟,数值重现了帽型试样高应变条件下的绝热剪切变形历程。
The adiabatic shearing deformation characteristics of 45 steel in three kinds of heat-treated conditions,including annealing,normalizing and modified treatment,was investigated under forced shearing test using hat-shaped specimens by means of the Split Hopkinson Pressure Bar(SHPB).
基于退火、正火、调质三种不同热处理状态的45钢的帽型试样强迫剪切实验,在Hopkinson压杆的不同速率加载条件下,利用金相显微镜和扫描电镜测试方法研究了材料绝热剪切的变形特征和敏感性,分析了组织因素对绝热剪切的影响规律。
The W-type specimen has a well prospective application in the measurement of fracture toughness of the materials which are used in the nuclear reactor.
W型试样在核反应堆压力容器用材料的断裂韧度测试中具有良好的应用前景。
Based on the sum-up of the research history and latest development of creep test technology, a new creep test method, namely minitype specimen creep testing method, is investigated in this paper.
本文对国内外蠕变试验技术研究的发展作了全面的回顾，着重对微型试样蠕变试验方法进行了研究。