摘要
针对航空发动机常用的GH4169高温合金材料进行实验研究。对GH4169进行室温下的静拉伸试验,测得其屈服强度和抗拉强度。对GH4169在室温下的缺口件和光滑件进行高周疲劳寿命试验,分别得到其应力寿命曲线,并根据缺口疲劳系数定义和工程实际应用,确定其疲劳缺口系数。
The GH4169 superalloy material commonly used in aeroengine was studied.The static tensile test of GH4169 at room temperature was carried out,and the yield strength and tensile strength were measured.High cycle fatigue life tests were carried out on notched and smooth GH4169 specimens at room temperature,and the stress life curves were obtained respectively.According to the definition of notch fatigue coefficient and engineering application,the fatigue notch coefficient was determined.
作者
许磊
雷旭升
XU Lei;LEI Xusheng(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《机械制造与自动化》
2021年第5期32-34,共3页
Machine Building & Automation
