热变形和淬火配分处理的复合作用对低碳合金钢马氏体相变机制的影响*
王存宇1,常颖2(
),杨洁3,赵坤民2,董瀚1
),杨洁3,赵坤民2,董瀚1
THE COMBINED EFFECT OF HOT DEFORMATION PLUS QUENCHING AND PARTITIONING TREATMENT ON MARTENSITE TRANSFORMATION OF LOW CARBON ALLOYED STEEL
Cunyu WANG1,Ying CHANG2(),Jie YANG3,Kunmin ZHAO2,Han DONG1
),Jie YANG3,Kunmin ZHAO2,Han DONG1
图3. 原位观察降温时马氏体优先形核位置和相变形核长大过程
Fig.3. HTLCM images show the formation and growth of martensite during the quenching treatment at 362.9 ℃ (a), 358.5 ℃ (b), 356.6 ℃ (c) and 350.7 ℃ (d) (Arrow 1 indicates martensite nucleates in the grain boundary, arrow 2 indicates martensite transformation promoted in the adjacent grain, arrow 3 indicates new formed martensite, arrow 4 indicates martensite nucleates in the corner of austenite grain, arrow 5 indicates adjacent and parallel martensite, arrow 6 indicates non-adjacent but parallel martensite and arrow 7 indicate approximately parallel martensite)
