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Title: Mechanisms of high temperature crack growth in metals and alloys

Abstract

The high-temperature creep crack growth behavior of pure Cu, Cu--Sn alloy, and predamaged Cu has been investigated. The purposes of this study have been to understand the mechanisms of creep crack growth; to prove theoretical predictions with experimental studies; and eventually to predict the time to failure of high-temperature structural materials. High-temperature crack growth experiments have been conducted under various loading conditions with a computer-based data acquisition and control system. A model to describe creep crack growth in pre-damaged Cu has been developed. It is based on cavity growth by coupled diffusional and creep processes under the damage-modified stress field. High-temperature crack growth experiments have been carried out under cyclic loading conditions. 99 refs., 59 figs., 2 tabs.

Authors:
Publication Date:
Research Org.:
Stanford Univ., CA (USA). Dept. of Materials Science and Engineering
Sponsoring Org.:
DOE/ER
OSTI Identifier:
7075359
Report Number(s):
DOE/ER/45169-T1
ON: DE90014934
DOE Contract Number:  
FG03-84ER45169
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER; CRACK PROPAGATION; COPPER ALLOYS; TIN ALLOYS; CORRELATIONS; CRACKS; CREEP; DIFFUSION; FINITE ELEMENT METHOD; GRAIN BOUNDARIES; MATHEMATICAL MODELS; PROGRESS REPORT; TEMPERATURE EFFECTS; ALLOYS; CRYSTAL STRUCTURE; DOCUMENT TYPES; ELEMENTS; MECHANICAL PROPERTIES; METALS; MICROSTRUCTURE; NUMERICAL SOLUTION; TRANSITION ELEMENTS; 360103* - Metals & Alloys- Mechanical Properties

Citation Formats

Nix, W D. Mechanisms of high temperature crack growth in metals and alloys. United States: N. p., 1989. Web. doi:10.2172/7075359.
Nix, W D. Mechanisms of high temperature crack growth in metals and alloys. United States. https://doi.org/10.2172/7075359
Nix, W D. 1989. "Mechanisms of high temperature crack growth in metals and alloys". United States. https://doi.org/10.2172/7075359. https://www.osti.gov/servlets/purl/7075359.
@article{osti_7075359,
title = {Mechanisms of high temperature crack growth in metals and alloys},
author = {Nix, W D},
abstractNote = {The high-temperature creep crack growth behavior of pure Cu, Cu--Sn alloy, and predamaged Cu has been investigated. The purposes of this study have been to understand the mechanisms of creep crack growth; to prove theoretical predictions with experimental studies; and eventually to predict the time to failure of high-temperature structural materials. High-temperature crack growth experiments have been conducted under various loading conditions with a computer-based data acquisition and control system. A model to describe creep crack growth in pre-damaged Cu has been developed. It is based on cavity growth by coupled diffusional and creep processes under the damage-modified stress field. High-temperature crack growth experiments have been carried out under cyclic loading conditions. 99 refs., 59 figs., 2 tabs.},
doi = {10.2172/7075359},
url = {https://www.osti.gov/biblio/7075359}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}