Analysis of heat treatment cracking of one Ni-based powder metallurgy superalloy disk
LIU Ming-dong1,2，ZHANG Ying1,2，HUANG Hu-bao1,2，LI Ke-min1,2，HAN Shou-bo1,2，ZHAO Jing-jian1,2，ZHANG Yi-wen1,2
1. High Temperature Materials Research Institute， Central Iron & Steel Research Institute， Beijing 100081， China 2. Beijing Key Laboratory of Advanced High Temperature Materials， Beijing 100081， China
Abstract：One cracking Ni-based powder metallurgy superalloy disk after heat treatment was analyzed. The results show that there is TIP (thermal induced pore) in the disc， and the surface micro-crack induced by TIP reduces the tensile strength of the disk. The residual stress resulted from heat treatment is beyond to the alloy strength， which means the disk cracking and failure. The formation of the pore is because of leaking of cans in the hot isostatic pressing. Improving the quality of cans is the key measure to eliminating the defect of TIP.
[1]张义文, 上官永恒.粉末高温合金的研究与发展[J].粉末冶金工业, 2004, 14(6):30-43[2] 汪武祥, 何锋, 邹金文.粉末高温合金的应用和发展[J][J].航空工程与维修, 2006, (6):26-28[3]国为民, 吴建涛.大型粉末高温合金锻件热处理过程的数值模拟[J].材料科学与工艺, 2003, 11(1):89-92[4]张家锋, 邹金文, 康进武, 柳百成.粉末高温合金涡轮盘淬火过程界面换热系数的研究[J].航空材料学报, 2010, 30(1):26-29[5] 汪煜, 邹金文, 王仁智, 周晓明, 汪武祥.一种粉末冶金高温合金涡轮盘热处理残余应力分析[C]// 中国金属学会高温材料分会. 动力与能源用高温结构材料－第十一届中国高温合金年会论文集. 北京: 冶金工业出版社, 2007: 538-541.[6]Kane W M, Kurpp U, Jacobs T, McMahon C J.On the mechanism of quench cracking in René95 nickel-based superalloy[J].Metal Science and Engineering A, 2005, 402(1-2):42-46[7] John Gayda, Pete Kantzos, Jason Miller.Quench crack behavior of nickel-base disk superalloys, NASA TM-2002-211984[R]. Ohio: NASA Glenn Research Center, 2002.[8]Mao J, Keeferv L, Chang K M, Furre D.An investigation on qunench cracking behavior of superalloy Udimet720Li using a fracture mechanics approach[J].Journal of Materials Engineering and Performance, 2000, 9(2):204-214[9] 张莹, 张义文, 张风戈, 董毅, 林清英.镍基粉末高温合金中的缺陷及其控制[J][J].材料工程, 2007, (增刊):160-164[10]张义文.高温合金粉末内部孔洞研究概况制[J].钢铁研究学报, 2002, 14(3):73-76[11]胡本芙, 李慧英, 章守华.粉末高温合金热处理裂纹形成原因研究[J].金属学报, 1987, 23(2):95-100[12]张凤戈, 张义文, 陶宇.镍基粉末高温合金的超声无损检测[J].粉末冶金工业, 2004, 14(3):16-19[13]刘丰军, 张麦仓, 董建新, 张义文.合金的高温氧化行为[J].北京科技大学学报, 2007, 29(7):704-707[14]刘明东, 张莹, 刘培英, 张义文.粉末高温合金原始颗粒边界及其对性能的影响[J].粉末冶金工业, 2006, 16(3):1-5[15]张莹.俄罗斯粉末高温合金涡轮盘的生产工艺[J].钢铁研究学报, 2000, 12(3):63-69
2017, Vol. 27 
