共被期刊论文引用了4次
您的检索式：您选中1篇文献正在查看引证文献汇总
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Morphological evolution of γ'precipitates in a nickel-based superalloy during various solution treatments显示文摘The morphological evolution of the γ' phase in nickel-based superalloy жc6y during various solution heat treatments was investigated. The significant changes of the γ' precipitates were observed in the solution-treated samples. The coarsening and dissolution of γ' phase simulta-neously occurred at intermediate temperatures. In some areas, the primary precipitates became blunt and the adjacent ones were intercon-nected with each other via a diffuse neck, indicating a coarsening process of the primary γ' population. The coarsening was dominated by the precipitate agglomeration mechanism (PAM) rather than by the well-known Ostwald ripening mechanism. In other areas, the partial dissolu-tion of the γ' precipitates began to occur, spreading gradually from dendrite cores to interdendritic regions. In addition, a flower-like γ' struc-ture was developed during the subsolvus solution treatments. The observable long filaments composed of erraticly shaped precipitates were caused by the heterogeneous nucleation of the cooling precipitates during water quenching. | Zhou, Yu Zhang, Zheng Zhao, Zihua Zhong, Qunpeng | 2012 | Rare Metals2012，31，3： | 10 |
| 2 | 高温热暴露时FGH97粉末高温合金中γ′相的演变及其定量表征显示文摘对FGH97粉末高温合金进行650℃保温不同时间的热暴露试验,采用扫描电镜分析显微组织的演变规律,并对演变过程中的γ′相进行定量表征。结果表明:随着热暴露时间的延长,FGH97粉末高温合金中的γ′相由规则的方形、三角形变为蝶形或八角形,再变为条状、棒状等不规则形状,一部分二次γ′相出现开裂现象,同时晶内的三次γ′相数量减少;随着热暴露时间的延长,FGH97粉末高温合金中γ′相的平均等效直径先增大后减小,形状因子减小,体积分数增大,晶界处聚集的γ′相明显增多。 | 刘昌奎 周静怡 魏振伟 陈锋 陶春虎 | 2018 | 机械工程材料2018，42，5： | 4 |
| 3 | 某型航空发动机单晶涡轮叶片热冲击疲劳行为研究显示文摘研究了1 000次热冲击疲劳循环对某型航空发动机单晶高温合金涡轮叶片损伤行为的影响。结果发现,在叶片尾缘排气窗间隔墙与叶片盆侧过渡的转角处形成热疲劳裂纹,裂纹长度较小。通过对叶片不同位置γ′相的显微观察和定量表征发现,叶片尾缘部分γ′相形貌退化较为明显,其余γ′相尚未发生明显退化,仍保持规则的立方状,表明1 000次热冲击疲劳循环对叶片的抗冷热性能影响较小。 | 王小蒙 王洪斌 卢玉章 李青 | 2018 | 铸造2018，67，4： | 4 |
| 4 | GH4720Li合金中温区低周疲劳行为研究显示文摘奥氏体沉淀强化GH4720Li合金用于制备航空发动机涡轮盘,其服役条件下的疲劳性能是当前研究的热点。研究了GH4720Li合金在中温区(450和550℃)不同应变条件下的低周疲劳行为。结果表明,GH4720Li合金的剪切模量和杨氏模量随着温度的升高而不断降低,但是中温区的抗拉强度和屈服强度不随温度而剧烈下降。GH4720Li合金的低周疲劳寿命随着应变值的升高而降低。在550℃/0.9%最大应变值时,疲劳寿命存在一个'平台'而表现出极大的分散性,当最大应变值低于'平台'时,低周疲劳寿命随温度升高而升高。GH4720Li合金疲劳寿命的'平台'现象是因为样品表面裂纹萌生和内部裂纹萌生2种断裂失效模式的竞争导致。 | 黄子琳 安腾 谷雨 唐超 曲敬龙 杜金辉 | 2021 | 钢铁研究学报2021，33，3： | 2 |
您所在的机构暂未开通此部分的功能，请联系管理员