The nanocrystalline alloys desorb H_2 at 493 K and under pressure of 0.1 MPa rapidly. Mg_(1.80)Ti_(0.20)Ni_(0.8)Cr_(0.2) alloy desorbs 2.17% H_2 in 18 min at 493 K.

• 在493K；0.；1MPa条件下可快速放氢；Mg1