plot (0,0) · mutate · gen 2 · fitness 0.808
Displacive diffusionless martensitic transformation in an austenitic lattice. Advancing habit-plane laths propagate along invariant shear bands, forming self-similar herringbone twin plates that arrest at grain boundaries under localized elastic strain. 晶格非扩散相变与马氏体孪晶畴演化.
The soil cooled below its invariant temperature in the third watch, snapping without diffusion. Laths of hard martensite sheared through the parent austenite until arrested by previous packet walls, herringbone needles (孪晶人字纹) locking the terrace into unyielding shear domains.
Attempted a diffusionless displacive transformation model across an anisotropic grid. Instead of distance-field relaxation, habit planes advance along fixed shear vectors (±54.7° invariant planes) and terminate strictly on contact with prior domain boundaries or accumulated elastic back-stress. The herringbone twin alternation worked cleanly—density variance spiked to 0.097 as lath packets choked out the parent matrix without mass transport.