Abrasive aqua jet machining of NiTiV ternary smart alloy.

Authors :: Arun, A.
Santosh, S.
Rajkumar, K.
Balasubramaniyan, C.
Source :: Materials & Manufacturing Processes; 2025, Vol. 40 Issue 3, p424-435, 12p
Publication Year :: 2025
Abstract: Nickel–titanium shape memory alloys (SMAs) are popular due to their usefulness and functional characteristics. The binary NiTi SMA was alloyed with vanadium to improve memory retention properties. In this study, the abrasive aqua jet machining method was adopted to machine the Ni<subscript>50</subscript>Ti<subscript>48</subscript>V<subscript>2</subscript> ternary SMA to minimize the kerf taper angle (K<subscript>TA</subscript>), surface roughness (R<subscript>a</subscript>) of machined Ni<subscript>50</subscript>Ti<subscript>48</subscript>V<subscript>2</subscript> surface, and enhance the material removal rate (MRR). RSM-BBD optimization using the input variables such as abrasive flow rate (A<subscript>FR</subscript>), water jet pressure (P<subscript>WJ</subscript>), nozzle traverse speed (V<subscript>TS</subscript>), and standoff distance (S<subscript>FD</subscript>) predicted that P<subscript>WJ</subscript> and S<subscript>FD</subscript> highly contributed to MRR, R<subscript>a</subscript>, and K<subscript>TA</subscript> responses. Small variation in variation after optimized AWJM conditions, and XRD analysis confirmed no phase changes after AWJM. [ABSTRACT FROM AUTHOR]