[en] An attempt is made to describe both the α-elastic scattering and the (³He,α) reaction on ⁵⁸Ni, ⁹⁰Zr and ²⁰⁸Pb for energies ranging from 100 to 283MeV where the phenomenological α-nucleus potentials adjusted on elastic scattering data are unable to reproduce correctly the transfer reaction cross-sections. In a first step the real and the imaginary part of the microscopic α-nucleus potential are renormalized by multiplicative constants by fitting the α-elastic scattering data then used to calculate the (³He,α) cross sections within the DWBA approximation. We show that such a potential leads to a satisfactory agreement with experiment in what concerns the shape of the angular distribution of transfer reaction and gives C²S compatible with those determined at low energy from (p,d) and (d,t) reactions. In a second step we show that adding to the microscopic absorptive potential a quite weak surface term is equivalent to the former renormalization of the imaginary potential in the sense that it is sufficient to describe both the α-elastic scattering and the transfer reaction but is, physically, more satisfying