Thickness Debit Effect in Creep Performance of a Ni3Al-Based Single-Crystal Superalloy with [001] Orientation

蠕动 材料科学 高温合金 合金 微观结构 变形(气象学) 复合材料 单晶 断裂(地质) 涡轮叶片 冶金 压力(语言学) 涡轮机 结晶学 机械工程 语言学 化学 哲学 工程类
作者
Shuangqi Zhang,Guoquan Ma,Haibo Wang,Wenqi Guo,Haigen Zhao,Yong Shang,Yanling Pei,Shusuo Li,Shengkai Gong
出处
期刊:Crystals [Multidisciplinary Digital Publishing Institute]
卷期号:13 (2): 200-200 被引量:9
标识
DOI:10.3390/cryst13020200
摘要

With the complexity of the structure of aero-engine turbine blades, the blade wall thickness continues to decrease. It is found that when the blade wall thickness decreases to a certain extent, its mechanical properties will decline significantly. It is extremely important to study this phenomenon of a significant decline in mechanical properties caused by wall thickness. In this paper, the creep behavior of a second-generation Ni3Al-based single crystal superalloy with different wall thicknesses and [001] orientation at 980 °C/220 MPa has been studied and compared with the creep life of Φ4 round bar. The experimental results show that the second orientation and the surface affected zone are not the main reasons for the reduction of the life of thin-walled samples under this experimental condition. By analyzing the fracture morphology and deformed microstructure of thin-walled samples with different thicknesses, it is found that the thickness debit effect of the single crystal alloy occurs since the effective stress area of the alloy changes due to internal defects and surface affected zone during the creep process. For thicker samples, the creep life of the alloy can be extended by making the samples undergo certain plastic deformation through better plastic deformation coordination ability, while for thinner samples, the plastic coordination ability is poor, and the ability to extend the creep life through plastic deformation is also weaker when the effective stress area of the alloy changes, which leads to the thinner samples being more prone to fracture.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
cugwzr完成签到,获得积分10
1秒前
123发布了新的文献求助10
2秒前
唯博完成签到 ,获得积分10
3秒前
muzi发布了新的文献求助10
4秒前
7秒前
7秒前
忧郁盼夏发布了新的文献求助10
7秒前
Xianhe完成签到,获得积分10
8秒前
HUU完成签到,获得积分10
10秒前
13秒前
忧郁盼夏完成签到,获得积分10
13秒前
13秒前
搜集达人应助su采纳,获得10
15秒前
丘比特应助gwenjing采纳,获得10
15秒前
哈哈哈完成签到,获得积分10
17秒前
17秒前
冷艳的姿发布了新的文献求助10
17秒前
dpp完成签到,获得积分10
18秒前
周周完成签到,获得积分10
20秒前
21秒前
21秒前
哈哈哈发布了新的文献求助30
21秒前
123发布了新的文献求助10
22秒前
24秒前
Stardust发布了新的文献求助10
24秒前
momo发布了新的文献求助10
25秒前
27秒前
笑笑完成签到,获得积分20
29秒前
stephenzh完成签到,获得积分10
29秒前
su发布了新的文献求助10
31秒前
笑笑发布了新的文献求助10
32秒前
李健的粉丝团团长应助momo采纳,获得10
33秒前
情怀应助LJJ采纳,获得10
35秒前
39秒前
40秒前
40秒前
42秒前
阿里巴巴大盗完成签到,获得积分10
43秒前
zying发布了新的文献求助30
43秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
‘Unruly’ Children: Historical Fieldnotes and Learning Morality in a Taiwan Village (New Departures in Anthropology) 400
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3989334
求助须知:如何正确求助?哪些是违规求助? 3531428
关于积分的说明 11253936
捐赠科研通 3270119
什么是DOI,文献DOI怎么找? 1804887
邀请新用户注册赠送积分活动 882087
科研通“疑难数据库(出版商)”最低求助积分说明 809173