Effect of phosphorus on the microstructure and high temperature properties of a cast Ni-base superalloy M963 has been investigated. SEM observation and EDS analysis showed that P was mostly enriched in the interdendritic region, and the P-rich phase was formed in the front position of finally solidified eutectics in high P doped alloys. It was found that the P-rich phase, as preferred initiation and propagation site of cracks, could aggravate the fracture process at high temperature in high P doped alloys. Consequently, high P addition would reduce remarkably the ductility and creep life of M963 superalloy at high temperature.
参考文献
| [1] | R T Hott;W Wallace .[J].International Materials Reviews,1976,21:1. |
| [2] | G W Meltham.[J].Metals and Technology,1984(11):414. |
| [3] | M McLean;A Strang .[J].Metals and Technology,1984,11:454. |
| [4] | Wenru SUN;Shouren GUO;Jianting GUO;Dezhong LU and Zhuangqi HU .[J].金属学报,1995,31A:346. |
| [5] | W.R..Sun;S.R.Guo;D.Z.lu .Effect of phosphorus on the microstructure and stress rupture properties in a Fe-Ni-Cr base superalloy[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,1997(3):649-654. |
| [6] | A C Wang;Y Y Li;C G Fan;K.Yang D.F.Li X.Zhao and C.X.Shi .[J].Scripta Metallurgica et Materialia,1994,31:1695. |
| [7] | C.Chen;R.G.Thompson;D.W.Davis;E.A.Loria.Superalloys 718, 625,706 and Various Derivatives[M].TMS-AIME, Warrendale, PA,1991:81. |
| [8] | Y X Zhu;S.Zhang;T.Zhang.Superalloys 718, 625, 706 and Various Derivatives, ed.E.A.Loria, TMS[J].Warrendale PA,1994:89. |
| [9] | C. G. McKamey;C. A. Carmichael;W. D. Cao;R. I. Kennedy .Creep properties of phosphorus+boron-modified alloy 718[J].Scripta materialia,1998(3):485-491. |
| [10] | D.A.Vermilyea;C.S.Tedmon Jr;D.E.Brocker .[J].Corrosion,1975,31:222. |
| [11] | W.D.Cao;R.L.Kennedy;E.A.Loria.Superalloys 718, 625, 706 and Various Derivatives[M].TMS, Warrendale, PA,1994:463. |
| [12] | W D Cao;RLgennedy.[J].Superalloys,1996:589. |
| [13] | R L Kennedy;W D Cao;W M Thomas .[J].Current Advances in Materials and Processes,1996,3:33. |
| [14] | W.D.Cao;R.L.Kennedy;E.A.Loria.Superalloys 718, 625, 706 and Various Derivatives[M].TMS-AIME, Warrendale,PA,1997:511. |
| [15] | H W Song;S R Guo;Z Q Hu .[J].Scripta Materialia,1999,41:215. |
| [16] | Chao YUAN,Xiaofeng SUN,Fengshi YIN,Hengrong GUAN,Zhuangqi HU,Qi ZHENG,Yang YU.Characteristics of High Temperature Rupture of a Cast Ni-Based Superalloy M963[J].材料科学技术学报(英文版),2001(04):425-428. |
| [17] | J T Guo;L Z Zhou.[A].Superalloys,1996 |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%