σ phase hardening

Laser phase transformation hardening

Laser phase trans-formation hardening

self-intensity of binding phase phase

Metal Phase and Phase Rule

phase Ⅰ and phase Ⅱ enzymes

phase advance phase lead

phase lead phase advance

polar-embedded reversed phase stationary phase

reversed phase bonded stationary phase

solid phase extraction stationary phase

05Cr17Ni4Cu4Nb precipitation hardening steel

absorption hardening

accelerator of hardening

additional cyclic hardening

additional hardening

adhesive-hardening

after hardening

after-hardening