激光增材制造成型马氏体时效钢研究进展

谭超林,周克崧,马文有,曾德长

Research Progress of Laser Additive Manufacturing of Maraging Steels

Chaolin TAN,Kesong ZHOU,Wenyou MA,Dechang ZENG

表3 SLM成型18Ni300马氏体时效钢成型方向对力学性能的影响[4,38,43,55,56,59,60]

Table 3 Effect of built directions on mechanical properties of SLM-produced grade 300 maraging steels[4,38,43,55,56,59,60]

SLM direction Specimen UTS / MPa YS / MPa El / % Hardness Ref. Horizontal SLM AF 1165±7 915±7 12.4±0.1 34.8 HRC [43] (X-Y plane) SLM aged 2014±9 1967±11 3.3±0.1 54.6 HRC [43] Vertical SLM AF 1085±19 920±24 11.3±0.3 35.7 HRC [43] (Z-X or Z-Y) SLM aged 1942±31 1867±22 2.8±0.1 52.9 HRC [43] Horizontal SLM AF 1100 1050 12.1 About 420 HV [38] SLM aged 1800 1720 4.5 About 600 HV [38] Vertical SLM AF 1205 1080 12.0 - [38] SLM aged 1850 1750 5.1 - [38] Horizontal SLM AF 1260±79 768±29 13.9±2.0 - [55] SLM aged 2216±156 1953±87 3.1±0.4 - [55] Vertical SLM AF 1325±51 825±96 14.0±1.5 - [55] SLM aged 2088±190 1833±65 3.2±0.6 - [55] Horizontal SLM AF 1174 1069 15.7 382 HV [60] SLM aged 1811 1729 10.5 552 HV [60] 45° SLM AF 1144 991 6.8 327 HV [60] SLM aged 1802 1714 9.9 558 HV [60] Vertical SLM AF 1057 892 13.8 375 HV [60] SLM aged 1816 1723 10.1 375 HV [60] Standard Wrought 1000~1170 760~895 6~15 35 HRC [56] Wrought aged 1930~2050 1862~2000 5~7 52 HRC [4,59]