High-temperature tensile and high cycle fatigue properties of inconel 625 alloy manufactured by laser powder bed fusion

•High-temperature high cycle fatigue (HCF) behavior of HIPed LPBF 625 was investigated.•HIPed LPBF and wrought alloys show similar grain size and grain boundary characteristics.•Al2O3 particles were detected in HIPed LPBF 625, and carbides were observed in wrought 625.•HIPed LPBF 625 has a lower HCF limit (500 MPa) compared to wrought 625 (550 MPa).•Higher sulfur content (HIPed LPBF 625) might be a reason for lower HCF properties at 650 ℃.