Additively Manufactured A625-GRCop42 Mechanical Test Data

Mechanical testing of additively manufactured (DED) Alloy 625 deposited on AM (PBF-LB) GRCop-42. "heated" samples were thermally exposed at 1500F (816C) for 200 hours before being machined into round, tapered/threaded test bars. The "non-heated" samples were in machined from the as-built condition. Testing was completed using a Shimadzu Servopulser EHF-EV101K1. Tensile testing was executed at a test speed of 0.3mm/min. Fatigue testing was load controlled, fully reversed (+/- 150MPa) at 20 hertz. There was no intentional heating during testing, however the ambient temperature was approximately 100F. Tensile strength of thermally exposed (TE) samples was less compared to the as-built samples. All tests fractured at either the interface or in the GRCop-42 (copper alloy) side of the test bar.
Note: The non-heat treat SN4 fatigue test stopped recording prior to fracture due to a controller error.

对在添加制造（DED）技术下沉积的合金625在AM（PBF-LB）GRCop-42上的机械性能进行了测试。经过加热处理的样本在1500华氏度（816摄氏度）下进行200小时的热暴露处理后，被加工成圆形、锥形/螺纹形的测试棒。未经加热处理的样本则直接从出厂状态加工而成。测试采用Shimadzu Servopulser EHF-EV101K1完成。拉伸测试以0.3毫米/分钟的测试速度进行。疲劳测试采用负荷控制方式，以20赫兹的频率进行完全反向加载（+/- 150MPa）。测试过程中未进行有意加热，但环境温度约为100华氏度。热暴露（TE）样本的拉伸强度相较于出厂状态样本有所降低。所有测试样本均在测试棒与GRCop-42（铜合金）侧的界面或内部发生断裂。注意：由于控制器错误，非热处理SN4疲劳测试在断裂前停止记录。