镍基单晶高温合金的研发进展
|
|
张健,王莉,王栋,谢光,卢玉章,申健,楼琅洪
|
Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys
|
|
Jian ZHANG,Li WANG,Dong WANG,Guang XIE,Yuzhang LU,Jian SHEN,Langhong LOU
|
|
| 表2 单晶高温合金中温蠕变机制[33,34,36,37,38] |
| Table 2 Creep mechanisms at intermediate temperature[33,34,36,37,38] |
|
| Alloys | Test condition | Creep mechanisms at intermediate temperature | Ref. |
|---|
CMSX-4 1st generation SX alloy | 750~850 ℃/450~750 MPa; 760 ℃/600, 700, 850 MPa | Different a/2<110> dislocations react at the interfaces of γ/γ' a/2[011]+a/2[011]+a/2[01]+a/2[01]→a/3[112]+a/3[12]+a/6[12]+a/6[12]a/3[12] and a/6[12] partial dislocations cut into γ' and leave a combination of SISF, SESF and APB | [33,34,38] | | AM1, MC-NG, MC534, CMSX-10M, Rene N6 | 760 ℃/ 840 MPa | a/2<110> dislocation cuts into γ' and results in a APB | [36] | SRR99 1st generation SX alloy | 760 ℃/600, 780 MPa 760 ℃/600, 700, 850 MPa | a/2<110> dislocations dissociate at the interface: a/2[01]→a/3[2]+a/6[2] a/3<112> partial dislocations cut into γ' and leave a SISF or SESF a/6<112> partial dislocation would be left at the γ/γ' interfaces | [37,38] |
|
|
|