A comparative assessment of crack closure mechanisms in Timetal 834 near alpha titanium alloy under isothermal and thermomechanical fatigue loading

作者：Prasad Kartik^*; Kumar Vikas; Rao K Bhanu Sankara; Sundararaman M

来源：Journal of Alloys and Compounds, 2016, 688: 8-11.

DOI：10.1016/j.jallcom.2016.06.258

• Titanium alloy
• Fatigue crack growth
• Crack closure
• Thermomechanical fatigue

The effect of crack closure in Timetal 834 titanium alloy was studied in isothermal and thermomechanical fatigue (TMF) loading using crack opening displacement (COD) gauge and alternating current potential drop (ACPD) techniques. It has been confirmed that surface roughness induced crack closure has maximum effect at 600 degrees C isothermal test conditions.

• 出版日期2016-12-15