Low Cycle Fatigue of the Single-Crystal Nickel-Base Superalloy CMSX-4 — Anistropy and Effect of Creep Damage*
Low Cycle Fatigue of the Single-Crystal Nickel-Base Superalloy CMSX-4 — Anistropy and Effect of Creep Damage*
复制标题
单晶镍基高温合金 CMSX-4 的低周疲劳 — 各向异性和蠕变损伤的影响*
DOI：
10.3139/120.110035
复制
发表时间：
2009
影响因子：
2.5
通讯作者：
T. Link
中科院分区：
文献类型：
--
作者：
H. Klingelhöffer;A. Epishin;T. Link
摘要：研究了单晶镍基高温合金CMSX-4在700 ~ 950℃温度范围内应变控制循环加载下的低周疲劳性能。研究的重点是低周疲劳行为的晶体各向异性和蠕变损伤对低周疲劳寿命的影响。在试验条件下，CMSX-4的低周疲劳寿命与取向密切相关，并且对筏形γ/γ′-微观结构的形成非常敏感。
Abstract Low cycle fatigue of the single-crystal nickel-base superalloy CMSX-4 was investigated in the temperature range 700—950°C under strain controlled cyclic loading. The points of interest were the crystallographic anisotropy of low cycle fatigue behaviour and the effect of creep damage on low cycle fatigue life. For the testing conditions used the low cycle fatigue life of CMSX-4 is strongly orientation dependent as well as very sensitive to the formation of rafted γ/γ’-microstructure.