Effect of surface roughness on determination of creep parameters using impression creep technique

Wuzhu Yan; B. Zhao; Zhufeng Yue

Effect of surface roughness on determination of creep parameters using impression creep technique

Wuzhu Yan, B. Zhao, Zhufeng Yue

School of Mechanics,Civil Engineering and Architecture

Northwestern Polytechnical University Xian

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The indentation creep test, especially the impression creep, exhibits a magic appealing in the determination of creep properties of small structures in industry for its simplicity, efficiency and non-destruction merits. Most of previous researches of indentation or impression creep neglect the effect of surface roughness of materials, which plays a crucial role in extracting creep properties of materials. The FE results showed that the surface roughness has no effect on the determination of creep exponent when the punching stress is larger than 150MPa. However, under a smaller punching stress the stress exponent is decreased due to the "Tuner" effect of asperities. The conclusions drawn in the present study provide an important guidance on experiment results amendment for impression creep technique.

Original language	English
Title of host publication	Mechanical Behavior at Small Scales - Experiments and Modeling
Pages	215-220
Number of pages	6
State	Published - 2010
Event	2009 MRS Fall Meeting - Boston, MA, United States Duration: 29 Nov 2009 → 3 Dec 2009

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1224
ISSN (Print)	0272-9172

Conference

Conference	2009 MRS Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	29/11/09 → 3/12/09

Cite this

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title = "Effect of surface roughness on determination of creep parameters using impression creep technique",

abstract = "The indentation creep test, especially the impression creep, exhibits a magic appealing in the determination of creep properties of small structures in industry for its simplicity, efficiency and non-destruction merits. Most of previous researches of indentation or impression creep neglect the effect of surface roughness of materials, which plays a crucial role in extracting creep properties of materials. The FE results showed that the surface roughness has no effect on the determination of creep exponent when the punching stress is larger than 150MPa. However, under a smaller punching stress the stress exponent is decreased due to the {"}Tuner{"} effect of asperities. The conclusions drawn in the present study provide an important guidance on experiment results amendment for impression creep technique.",

author = "Wuzhu Yan and B. Zhao and Zhufeng Yue",

year = "2010",

language = "英语",

isbn = "9781605111971",

series = "Materials Research Society Symposium Proceedings",

pages = "215--220",

booktitle = "Mechanical Behavior at Small Scales - Experiments and Modeling",

note = "2009 MRS Fall Meeting ; Conference date: 29-11-2009 Through 03-12-2009",

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Effect of surface roughness on determination of creep parameters using impression creep technique. / Yan, Wuzhu; Zhao, B.; Yue, Zhufeng.
Mechanical Behavior at Small Scales - Experiments and Modeling. 2010. p. 215-220 (Materials Research Society Symposium Proceedings; Vol. 1224).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effect of surface roughness on determination of creep parameters using impression creep technique

AU - Yan, Wuzhu

AU - Zhao, B.

AU - Yue, Zhufeng

PY - 2010

Y1 - 2010

N2 - The indentation creep test, especially the impression creep, exhibits a magic appealing in the determination of creep properties of small structures in industry for its simplicity, efficiency and non-destruction merits. Most of previous researches of indentation or impression creep neglect the effect of surface roughness of materials, which plays a crucial role in extracting creep properties of materials. The FE results showed that the surface roughness has no effect on the determination of creep exponent when the punching stress is larger than 150MPa. However, under a smaller punching stress the stress exponent is decreased due to the "Tuner" effect of asperities. The conclusions drawn in the present study provide an important guidance on experiment results amendment for impression creep technique.

AB - The indentation creep test, especially the impression creep, exhibits a magic appealing in the determination of creep properties of small structures in industry for its simplicity, efficiency and non-destruction merits. Most of previous researches of indentation or impression creep neglect the effect of surface roughness of materials, which plays a crucial role in extracting creep properties of materials. The FE results showed that the surface roughness has no effect on the determination of creep exponent when the punching stress is larger than 150MPa. However, under a smaller punching stress the stress exponent is decreased due to the "Tuner" effect of asperities. The conclusions drawn in the present study provide an important guidance on experiment results amendment for impression creep technique.

UR - https://www.scopus.com/pages/publications/78649235706

M3 - 会议稿件

AN - SCOPUS:78649235706

SN - 9781605111971

T3 - Materials Research Society Symposium Proceedings

SP - 215

EP - 220

BT - Mechanical Behavior at Small Scales - Experiments and Modeling

T2 - 2009 MRS Fall Meeting

Y2 - 29 November 2009 through 3 December 2009

ER -

Effect of surface roughness on determination of creep parameters using impression creep technique

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