Study of the Creep Behavior of Nickel-Based Single Crystal Superalloy Micro Specimens with Dimensional Effects

蠕动 材料科学 高温合金 微观结构 复合材料 冶金 单晶 断裂(地质) Crystal(编程语言) 空化 结晶学 热力学 化学 物理 程序设计语言 计算机科学
作者
Wangjiao Xiong,Xing Ai,Jianfang Wang,Quanzhong Wang,Yanyun Zhao,Hehua Zhu,Hui‐Ming Cheng,Sheng Zhang
出处
期刊:Crystals [MDPI AG]
卷期号:12 (5): 592-592 被引量:3
标识
DOI:10.3390/cryst12050592
摘要

Nickel-based single-crystal superalloys are widely used in aeroengine hot-end components, owing to their unique crystal structure and outstanding high-temperature mechanical properties. In the present study, round rod specimens of different sizes were subjected to high temperature creep tests at 980 °C/300 MPa of a second-generation nickel-based single crystal superalloy. The effect of size on the creep behavior of nickel-based single-crystal superalloys was studied with reference to the creep curves and microstructure morphologies. Creep interruption tests of 3-mm micro-round rod specimens were performed for 30, 60, and 90 h until creep fracture occurred. It was found that for nickel-based single crystal superalloys, the smaller the diameter of the specimen, the longer its creep life. Furthermore, the creep fracture morphology showed obvious creep cavitation in the fracture region. The law of organization evolution was used to analyze the rafting phenomena during the creep process. A typical “N”-type drifting strip structure was found during the creep process. Meanwhile, the width of the γ-phase channel increases continuously with creep, and the rate of change of the width of the matrix phase was fastest at the earliest stage of creep, slowing significantly during the middle and late stages of creep with the completion and appearance the rafting phenomenon.
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
大幅提高文件上传限制,最高150M (2024-4-1)

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
大意的醉山完成签到,获得积分10
刚刚
哇哇哇完成签到 ,获得积分10
1秒前
hanyang965发布了新的文献求助10
1秒前
斯文败类应助醉熏的盼曼采纳,获得10
2秒前
小毛发布了新的文献求助10
3秒前
3秒前
3秒前
CWNU_HAN应助优美凡双采纳,获得30
4秒前
采白发布了新的文献求助10
4秒前
张益萌应助李飞客采纳,获得10
5秒前
6秒前
6秒前
活力小夏应助yj采纳,获得50
6秒前
7秒前
bbbb完成签到,获得积分10
8秒前
清璃发布了新的文献求助10
9秒前
9秒前
10秒前
10秒前
刘家骏发布了新的文献求助10
11秒前
11秒前
醉熏的盼曼完成签到,获得积分20
13秒前
南山无梅落完成签到 ,获得积分10
14秒前
冰糕完成签到,获得积分10
15秒前
豆豆发布了新的文献求助10
15秒前
16秒前
棠梨子完成签到 ,获得积分10
16秒前
冷静的跌发布了新的文献求助10
16秒前
刘家骏完成签到,获得积分10
16秒前
打打应助清脆的冷松采纳,获得10
17秒前
17秒前
爆米花应助梁漂亮采纳,获得10
17秒前
啦啦啦完成签到 ,获得积分10
17秒前
Tumbleweed668发布了新的文献求助10
17秒前
Tumbleweed668发布了新的文献求助10
17秒前
Jasper应助YingjiaHu采纳,获得10
17秒前
Tumbleweed668发布了新的文献求助10
17秒前
没事就去读paper完成签到,获得积分10
17秒前
17秒前
18秒前
高分求助中
Licensing Deals in Pharmaceuticals 2019-2024 3000
Cognitive Paradigms in Knowledge Organisation 2000
Effect of reactor temperature on FCC yield 2000
How Maoism Was Made: Reconstructing China, 1949-1965 800
Introduction to Spectroscopic Ellipsometry of Thin Film Materials Instrumentation, Data Analysis, and Applications 600
Promoting women's entrepreneurship in developing countries: the case of the world's largest women-owned community-based enterprise 500
Shining Light on the Dark Side of Personality 400
热门求助领域 (近24小时)
化学 医学 生物 材料科学 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 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3310354
求助须知:如何正确求助?哪些是违规求助? 2943290
关于积分的说明 8513642
捐赠科研通 2618527
什么是DOI,文献DOI怎么找? 1431125
科研通“疑难数据库(出版商)”最低求助积分说明 664383
邀请新用户注册赠送积分活动 649580