中国激光, 2018, 45 (11): 1102004, 网络出版: 2018-11-15
热处理对激光立体成形DZ125高温合金组织的影响 下载: 616次
Effect of Heat Treatment on Microstructure of Laser Solid Formed DZ125 Superalloy
图 & 表
图 1. 激光立体成形的DZ125高温合金试样。(a)俯视图;(b)正视图
Fig. 1. Laser solid formed DZ125 superalloy sample. (a) Top view; (b) front view
图 2. 不同固溶温度下固溶2 h和原始沉积态的γ'相的微观形貌。(a) 1160 ℃;(b) 1180 ℃;(c) 1200 ℃;(d) 1220 ℃;(e) 1240 ℃;(f)沉积态
Fig. 2. Mirco-morphologies of as-deposited and 2 h solution-treated γ' phases at different solution temperatures.(a) 1160 ℃; (b) 1180 ℃; (c) 1200 ℃; (d) 1220 ℃; (e) 1240 ℃; (f) as-deposited
图 3. 激光立体成形的沉积态与不同热处理后的γ'相形貌。(a)沉积态;(b) 1180 ℃/2 h/AC;(c) 1180 ℃/2 h/AC+850 ℃/12 h/AC;(d) 1180 ℃/2 h/AC+1000 ℃/12 h/AC
Fig. 3. Morphologies of as-deposited and different heat-treated γ' phases of laser solid-formed samples. (a) As-deposited; (b) 1180 ℃/2 h/AC; (c) 1180 ℃/2 h/AC+850 ℃/12 h/AC; (d) 1180 ℃/2 h/AC+1000 ℃/12 h/AC
图 4. 1180 ℃/2 h/AC+1000 ℃/12 h/AC热处理后的碳化物。(a) M6C或M23C6;(b) MC(2);(c)图4(a)的能谱结果;(d)图4(b)的能谱结果
Fig. 4. Carbides obtained after heat treatment at 1180 ℃/2 h/AC+1000 ℃/12 h/AC. (a) M6C or M23C6;(b) MC(2); (c) energy spectrum for Fig.4(a); (d) energy spectrum for Fig.4 (b)
图 5. 1240 ℃/2 h/AC+1100 ℃/2~8 h/AC 热处理后的γ'相的微观形貌。(a) 2 h;(b) 3 h;(c) 4 h;(d) 5 h;(e) 6 h;(f) 8 h
Fig. 5. Mirco-morphologies of γ' phases heat-treated at 1240 ℃/2 h/AC+1100 ℃/2-8 h/AC. (a) 2 h; (b) 3 h; (c) 4 h; (d) 5 h; (e) 6 h; (f) 8 h
图 6. 1240 ℃/2 h/AC+870 ℃/8,16,20 h/AC热处理后的γ'相微观形貌。(a) 8 h;(b) 16 h;(c) 20 h
Fig. 6. Mirco-morphologies of γ' phases heat-treated at 1240 ℃/2 h/AC+870 ℃/8, 16, 20 h/AC. (a) 8 h; (b) 16 h; (c) 20 h
图 7. γ'相的尺寸、体积分数与时效时间关系。(a) 1100 ℃时效;(b) 870 ℃时效
Fig. 7. Size and volume fraction of γ' phase versus aging time. (a) Aged at 1100 ℃; (b) aged at 870 ℃
图 8. 1100 ℃不同时效时间下γ'相尺寸的统计。(a) 2 h;(b) 3 h;(c) 4 h;(d) 5 h
Fig. 8. Statistical results of size of γ' phases at 1100 ℃ for different aging time. (a) 2 h; (b) 3 h; (c) 4 h; (d) 5 h
图 9. 870 ℃不同时效时间下小尺寸γ'相的溶解。(a) 16 h;(b) 20 h
Fig. 9. Dissolution of small size γ' phases at 870 ℃ for different aging time. (a) 16 h; (b) 20 h
图 10. 不同时效温度下γ'相尺寸与时间的关系
Fig. 10. Relationship between γ' phase size and aging time under different aging temperature
图 11. γ'颗粒尺寸的概率函数。(a) 1100 ℃时效2 h的统计值与计算值;(b) 1100 ℃时效2~5 h的统计值
Fig. 11. Probability function of γ' particle size. (a) Statistical value and calculated value at 1100 ℃ for 2 h aging time; (b) statistical value at 1100 ℃ for 2-5 h aging time
表 1碳化物的化学成分(原子数分数,%)
Table1. Chemical compositions of carbides (atomic fraction, %)
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杨海欧, 韩加军, 林鑫, 黄卫东. 热处理对激光立体成形DZ125高温合金组织的影响[J]. 中国激光, 2018, 45(11): 1102004. Yang Haiou, Han Jiajun, Lin Xin, Huang Weidong. Effect of Heat Treatment on Microstructure of Laser Solid Formed DZ125 Superalloy[J]. Chinese Journal of Lasers, 2018, 45(11): 1102004.