铁素体-贝氏体双相钢韧性断裂过程中的夹杂物临界尺寸及孔洞生长

赵亚峰, 刘苏杰, 陈云, 马会, 马广财, 郭翼

Critical Inclusion Size and Void Growth in Dual-Phase Ferrite-Bainite Steel During Ductile Fracture

ZHAO Yafeng, LIU Sujie, CHEN Yun, MA Hui, MA Guangcai, GUO Yi

表2 不同钢种夹杂物临界尺寸[48~56]

Table 2 Literature reports on the magnitude of the critical particle size across various types of steels[48-56]

Material Matrix Inclusion type Critical size of inclusion / µm Ref. Steel Ferrite Silicate, TiN 2-4 [49] A508 steel Bainite MnS 17 × 10 × 3 [50] SAE52100 Martensite Ca-Al-O, Ti(N, C) 21 [51] 600 MPa high-strength steel Martensite Inclusion 2 [52] Ferrite-martensite dual-phase steel Ferrite + martensite Inclusion Correlated with martensite phase size [48] High-strength steel Martensite Al2O3 16 [53] High-strength steel Martensite TiN 11 [53] Bearing steel Martensite Mg-Al-O 8.5 [54] Bearing steel Martensite Calcium aluminate 13.5 [54] Pipeline steel Ferrite + pearlite MnS 2.52-2.6 [55] SLM IN718 Ni suppralloy Void 20 [56]