[PDF] Top 20 The Effects of Aging on the Degree of Order in Cu Al Ni Shape Memory Alloys

... in Table 2. The data points plotted in Fig. 7 are expected to be on a straight line as seen in eq. (8). Thus, the two straight lines are drawn between the data points of {n 0 0} type diffractions and between those of {n ... See full document

... and shape-memory prop- erties coexist in the ternary Ni-Mn-Al alloy ...large Al-rich region of the phase diagram that shows remanent ... See full document

... significance. Shape memory alloys are the most important branch from the smart and/or intelligence materials ...ory alloys” (SMAs) refers to that group of metallic mate- rials that have the ... See full document

... In order to investigate the superelasticity of Ti–Ni–Cu–Mo alloys, tensile tests were made at Af temperature, and the stress-strain curves obtained are shown in ...Ti–Ni–Cu ... See full document

... the Al content, and thus the degree of order in the phase is lowered by decreasing the Al ...the degree of order, ductile Cu-Al-Mn alloys containing Mn over ... See full document

... the furnace cooled Ti–50 at%Pd alloy as pointed out above. In the furnace cooled Ti-rich alloys, only one peak was ob- served on heating curve. The temperature of this peak for all the compositions lies very close ... See full document

... Ingots of Ti-6.0 mol%Zr-52 mol%Ni, Ti-6.0 mol%Zr-53 mol%Ni and Ti-11.1 mol%Zr-51.5 mol%Ni were prepared using a tri-arc melting furnace. They were homogenized in evacuated quartz tube for 605 ks (7 ... See full document

... In order to evaluate the shape memory properties, the convenient bending test was carried out at room ...round shape (¼ 7 mm) and heated up about 500 ...In order to investigate the ... See full document

... Figure 3 shows one example of the stress-strain curve for shape memory alloys. This curve was conducted to measure the elastic recovery strain with pre-strain of 7.5%. Moreover, the elasticity ... See full document

... Cu-base shape memory (SM) alloys are commercially at- tractive because of their low cost and high electrical and ther- mal conductivities compared with Ti–Ni-base alloys, which ... See full document

... martensite stabilisation effect is produced, directly related to the permanent deformation that remains in the sample when unloading and leading to the large hysteresis shown by the mechanically formed martensite. This ... See full document

... improve memory in ...and memory ability in rodent models of memory ...et al [15] and Wang et al [16] who also demonstrated that statins enhance learning and memory in animal ... See full document

... porous Al-Ti ingots were cut out by a spark-erosion wire cutting machine (LN1W, Sodick ...porous Al ingots were analyzed as in the case of porous Al-Ti ... See full document

... Finally, it should be commented why ! precipitation occurs during aging at such low temperature, 423 K. The anomalously enhanced diffusion in the bcc lattice at low temperatures has been extensively studied and ... See full document

... to restrain the formation and grain growth of Laves phase during sintering to obtain sufficient shape memory character- istics of the sintered alloy. Therefore, sintering time of the MAed powder is selected a ... See full document

... The Fe-Pd ferromagnetic shape memory alloy is a multifunctional material. We investigated the behavior of the superelastic properties of rapidly solidified Fe-Xat%Pd (X ¼ 29:3, 29.6, 30.2 and 30.4) alloy ... See full document

... Figure 1 shows strain–stress curves obtained by tensile tests at room temperature in Ti–22 at%Nb specimens with different oxygen contents: (a) as-rolled specimens and (b) specimens solution treated at 1173 K for 1.8 ks. ... See full document

... for up to 2419 ks (approximately 1 month) were also performed. Differential scanning calorimetry (DSC), a useful technique for detection of nanoclusters, was operated using a Rigaku equiptment of DSC823D/TAS-200 ranging ... See full document

... of Ni-Al-Cu intermetallic alloys in simulated human body fluid environments has been carried out by using electrochemical ...Tested alloys included 50 (wt %) Ni-(20 and 25) ... See full document

... the Cu-added alloy. The Cu-added alloy was selected since the clearer change of the electrical resistivity is shown in the Cu-added alloy than that of the Cu-free alloy as shown in ...the ... See full document