Effect of deformation on the stress-induced martensitic transformation in (Ni47Ti44)100−xNbxshape memory alloys with wide hysteresis

Effect of stress-induced martensitic tra

Effect of stress-induced martensitic transformation on the crack tip stress-intensity factor in Ni–Mn–Ga shape memory alloy

✍ Feng Xiong; Yong Liu 📂 Article 📅 2007 🏛 Elsevier Science 🌐 English ⚖ 565 KB

The Ni-Mn-Ga shape memory ferromagnetic shape memory alloys (FSMAs) are prone to fracture during thermal cycling. The present research shows that the primary reason for the thermally induced fracture of Ni-Mn-Ga FSMAs is the increase in the crack tip stress-intensity factor (SIF) due to stress redis