321不锈钢350℃拉伸性能数据集

晶界阻碍位错运动，在晶内，必须塞积有足够多的位错才能提供应力使得相邻的晶粒的位错源开动，因而产生宏观塑性变形。本实验通过在350℃的高温单轴拉伸实验，验证经过晶界工程处理后样品的拉伸性能。结果表明：5)GBE样品在室温和350℃的抗拉强度和延伸率略微优于非GBE样品，室温屈服强度比非GBE样品下降约5%-10%，但抗拉强度和延伸率略有升；而350℃条件下的拉伸时，GBE样品的屈服强度、抗拉强度和延伸率均高于非GBE样品。此外，拉伸速率、GBE工艺参数和δ铁素体含量对GBE样品的室温拉伸也有不同程度的影响。

Grain boundaries hinder dislocation movement. Within grains, a sufficient number of dislocations must pile up to provide the stress required to activate dislocation sources in adjacent grains, thus leading to macroscopic plastic deformation. This experiment verifies the tensile properties of grain boundary engineering (GBE)-treated samples via high-temperature uniaxial tensile tests conducted at 350℃. The results show that: 5) GBE-treated samples demonstrate slightly superior tensile strength and elongation at both room temperature and 350℃ compared to non-GBE-treated samples. The room-temperature yield strength of GBE samples decreases by approximately 5%-10% relative to non-GBE samples, while their tensile strength and elongation slightly increase. When tested at 350℃, however, the yield strength, tensile strength and elongation of GBE samples are all higher than those of non-GBE samples. In addition, tensile rate, GBE process parameters and delta ferrite content also exert varying degrees of influence on the room-temperature tensile properties of GBE samples.

搜集汇总

背景与挑战

背景概述

该数据集通过350℃高温单轴拉伸实验，研究了晶界工程处理对321不锈钢拉伸性能的影响。结果表明，经过处理的样品在350℃下屈服强度、抗拉强度和延伸率均优于未处理样品，同时拉伸速率和工艺参数也会影响室温拉伸性能。