摘要
对奥氏体不锈钢316H在不同温度下的高温拉伸性能进行试验。温度升高使得316H不锈钢内部原子运动速度加快,晶格结构变得疏松,原子间距离增加,抵抗变形能力降低。试验温度从350℃增加到650℃,316H不锈钢的规定塑性延伸强度和抗拉强度均呈现持续下降趋势,相比常温下的拉伸性能,316H不锈钢650℃时的规定塑性延伸强度降低了49%,抗拉强度降低了33%。温度的增加使得316H不锈钢强度显著降低。
The high temperature tensile properties of austenitic stainless steel 316H at different temperatures were tested.The increase of temperature makes the internal atomic movement speed of 316H stainless steel accelerate,the lattice structure becomes loose,the distance between atoms increases,and the resistance to deformation decreases.When the test temperature increases from 350℃to 650℃,the specified plastic extension strength and tensile strength of 316H stainless steel show a continuous decreasing trend.Compared with the tensile properties at room temperature,the specified plastic extension strength of 316H stainless steel at 650℃is reduced by 49%,and the tensile strength is reduced by 33%.The increase of temperature significantly reduces the strength of 316H stainless steel.
作者
周斌
杨阳
甘煜中
ZHOU Bin;YANG Yang;GAN Yuzhong(Inspection and Testing Center of Jiuquan Iron&Steel(Group)Co.Ltd.,Jiayuguan 735100,China)
出处
《甘肃冶金》
2024年第1期95-97,共3页
Gansu Metallurgy
关键词
316H不锈钢
拉伸试验
规定塑性延伸强度
抗拉强度
316H stainless steel
tensile test
stipulate the plastic extension strength
tensile strength
