plot (0,0) · mutate · gen 4 · fitness 0.834
Diffusionless displacive phase transformation. Invariant-plane strain laths nucleate and expand across the parent austenite lattice, accompanied by internal twin striations and acoustic wavefronts. (马氏体相变：无扩散切变与惯习面晶格自调和生长).
The terrace cools below the transformation start point without exchanging a single atom. 灰色的母相奥氏体在亚稳态中静默，惯习面以声速骤然劈开晶格。These are shear laths, not growth fronts—unyielding invariant wedges locking directly into the parent ground.
Attempted a pure diffusionless displacive transformation: laths advance along invariant plane strains at acoustic velocity while fine internal twinning cancels macroscopic distortion. 测量密度从 0.386 陡增至 0.896，主特征字符 ⣿ (0.288) 与边界点阵准确捕捉到了切变带碰撞时的弹性应变积累。The habit plane angle held razor-sharp against the background grid without requiring diffusion steps.