1) nickel-base single crystal superalloy
镍基单晶超合金
1.
Void growth behavior plays an important role in the deformation, damage and rupture of the nickel-base single crystal superalloys at high temperature.
在高温状态下,镍基单晶超合金的变形、损伤及断裂分析中,孔洞的长大都起着主要的作用。
2) single crystal nickel base superalloys
单晶镍基合金
1.
The affection factors of the creep behaviour for two single crystal nickel base superalloys with [001] orientation were studied by measuring the creep curves and internal stress of dislocation motion, and by EDAX composition analysis as well.
通过对 [0 0 1 ]取向单晶镍基合金蠕变曲线和位错运动内摩擦力的测定及能谱微区成分分析 ,研究了两种合金的蠕变特性。
4) single crystal nickel-based superalloy
单晶镍基合金
1.
By means of the measurement of the creep curves and microstructure observation,an investigation has been made into the influence of the element W concentration on the microstructure and properties of single crystal nickel-based superalloys.
通过对两种成分单晶镍基合金进行蠕变曲线测定,长期时效处理及组织形貌观察,研究了元素W含量对单晶合金组织与性能的影响。
2.
By means of measurement of creep curves and microstructure observation, an investitation has been made into the influence of the solution temperature on the creep properties od a single crystal nickel-based superalloy.
根据差热曲线分析制定出合金的热处理工艺,结合蠕变性能测试及组织形貌观察,研究了固溶温度对一种含Re单晶镍基合金蠕变性能的影响。
5) single crystal nickel-base superalloy
单晶镍基合金
1.
The creep equation have been set up,and the creep activation energy and stress exponent have been calculated by means of measurement of the creep curves and internal fractional stresses of dislocation motion during creep of a single crystal nickel-base superalloy.
通过测定一种单晶镍基合金的高温拉伸蠕变曲线及位错运动的内摩擦应力σ0,建立了综合蠕变方程,计算出稳态蠕变期间的表观蠕变激活能及相关参数。
2.
The microstructures for a single crystal nickel-base superalloy with [001] orientation,after tension load at 1040℃ under 120 MPa for various creep time, were observed by measns of TEM.
对[001]取向单晶镍基合金的恒温拉伸蠕变组织形貌的TEM观察表明，蠕变初期，基体γ相八面体滑移系中两组1／2＜110＞位错运动至同一晶面相遇，发生反应形成三维节点的位错网络；稳态期间，基体中运动位错可通过界面位错网攀移越过筏状γ相；蠕变后期形变的特征是运动位错在位错网损坏处切入筏状γ相
3.
The microstructures of a single crystal nickel-base superalloy with [001] orientation at different creep stages of the constant loading compression were observed by meansof TEM and SEM.
对［001］取向单晶镍基合金恒温恒载压缩蠕变不同时间的组织形貌进行SEM和TEM观察表明：蠕变初期，两立方γ′相沿平行于应力轴方向扩散相连定向生长成为条形筏结构；垂直通道中基体[001］晶向共格应变量减小，应变能降低是合金元素定向扩散形成γ′相筏结构的驱动力；压缩与拉伸蠕变相比较，γ′相形筏所需要的时间较长，应力较
6) single crystal nickel base superalloy
单晶镍基合金
1.
The microstructures of [001] single crystal nickel base superalloys under the constant loading tensile creep were observed by means of SEM, and the chemical composition of γ and γ′ phases were analyzed by EDAX in order to investigate the features and effect factors of the directional coarsening of γ′ phase.
对 [0 0 1 ]取向单晶镍基合金恒载拉伸蠕变的组织形貌进行 SEM观察和 EDAX成分分析 ,研究了 γ′相定向粗化特征及影响因素。
补充资料：超合金
分子式：
CAS号：
性质：又称超合金。铁基、镍基和钴基高温合金的总称。在高温时有很高的持久、蠕变和疲劳强度，其使用温度可达1100℃左右。其典型组织为：奥氏体基体和弥散分布于其中的强化相，它可以是碳化物相、金属间化合物相或稳定化合物质点。根据合金成分和使用上的需求，可选择电弧炉、感应炉、真空感应炉进行一次熔炼或用真空白耗炉或电渣炉对母合金进行重熔，还有用电子束或低压等离子体作为高热能源进行熔炼的工艺。在铸造工艺上，除常规的精密铸造外，定向结晶和单晶技术已得到广泛应用，快速凝固粉末冶金和机械合金化工艺也是两种制备方法。高温合金广泛应用于航空、航天、舰船、机车、发电以及石油化工等工业中。
CAS号：
性质：又称超合金。铁基、镍基和钴基高温合金的总称。在高温时有很高的持久、蠕变和疲劳强度，其使用温度可达1100℃左右。其典型组织为：奥氏体基体和弥散分布于其中的强化相，它可以是碳化物相、金属间化合物相或稳定化合物质点。根据合金成分和使用上的需求，可选择电弧炉、感应炉、真空感应炉进行一次熔炼或用真空白耗炉或电渣炉对母合金进行重熔，还有用电子束或低压等离子体作为高热能源进行熔炼的工艺。在铸造工艺上，除常规的精密铸造外，定向结晶和单晶技术已得到广泛应用，快速凝固粉末冶金和机械合金化工艺也是两种制备方法。高温合金广泛应用于航空、航天、舰船、机车、发电以及石油化工等工业中。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条