The reason is that the elastic energy increases the nucleation work while the formation of primary martensite can excite the release of elastic energy in austenite to promote the formation of after martensite and intensify the tendency towards homogeneous nucleation 其原因是弹性能的存在增大了初生马氏体的形成功，而初生马氏体的形成则会激发奥氏体内弹性能的释放，弹性能的释放可促进继生马氏体形成，并增大其均匀形核倾向。
