Subject Code:E01 Conventional polycrystalline materials become harder with decreasing grain size,following the classical Hall—Petch relationship,i.e.,strength increases reversely proportional to the square root of th...Subject Code:E01 Conventional polycrystalline materials become harder with decreasing grain size,following the classical Hall—Petch relationship,i.e.,strength increases reversely proportional to the square root of the grain size.Strengthening occurs due to dislocation pileups at grain boundaries that prevent the dislocations展开更多
文摘Subject Code:E01 Conventional polycrystalline materials become harder with decreasing grain size,following the classical Hall—Petch relationship,i.e.,strength increases reversely proportional to the square root of the grain size.Strengthening occurs due to dislocation pileups at grain boundaries that prevent the dislocations
