温度对某枪管材料力学性能影响试验

为了研究温度对枪管材料30SiMn2MoVA力学性能的影响,将枪管材料加热到不同温度(20℃～ 600℃)进行拉伸试验;试验得到了不同温度下枪管材料的屈服强度、抗拉强度、弹性模量、断后伸长率;根据试验结果,建立了高温下枪管材料屈服强度、抗拉强度、弹性模量与温度的经验模型;试验表明:随着温度的升高,枪管材料的屈服强度、抗拉强度、弹性模量不断降低,断后伸长率在20℃～500℃有较小波动,在500℃～ 600℃急剧升高,研究结果为枪管和弹丸相互作用机理提供了参考.

Experimental on Influence of Temperature on Mechanical Properties of Barrel in Material 30SiMn2MoVA

In order to research influence of temperature on mechanical properties of barrel in material 30SiMn2MoVA,the barrel was heated to different temperatures (20 ～600℃) for tensile test.By doing the test,yield strength,tensile strength,modulus of elasticity and elongation of the barrel at different temperatures were obtained.According to testing result,empirical models for yield strength-temperature,tensile strength-temperature and modulus of elasticity-temperature were proposed.It shows that as temperature increases,yield strength,tensile strength,and modulus of elasticity of barrel decreases continuously.As for elongation,it fluctuates slightly from 20℃ to 500℃,and increases sharply from 500℃ to 600℃.Outcome of this paper can provide reference for interaction mechanism between barrel and projectile.