Two-bar thermal ratcheting for alloy 617 - Part I: Scoping tests

Yanli Wang; T. L. Sham; R. I. Jetter

doi:10.1115/1.4028302

Two-bar thermal ratcheting for alloy 617 - Part I: Scoping tests

Yanli Wang
, T. L. Sham
, R. I. Jetter

Mechanical Behaviors and Mechanics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

A two-bar thermal ratcheting procedure has been implemented to Alloy 617 at very high temperatures. The procedure is based on two bars tested on two coupled servo hydraulic machines to achieve equal displacement and constant total applied load, mimicking the behavior of a pressurized cylinder subjected to through wall thermal transients. The bars were heated and cooled out of phase to generate thermally induced loading superimposed on a constant mean stress. Scoping test results at slow heating and cooling rates are presented for different mean stresses and thermal histories.

Original language	English
Article number	031008
Journal	Journal of Pressure Vessel Technology, Transactions of the ASME
Volume	137
Issue number	3
DOIs	https://doi.org/10.1115/1.4028302
State	Published - Jun 1 2015

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abstract = "A two-bar thermal ratcheting procedure has been implemented to Alloy 617 at very high temperatures. The procedure is based on two bars tested on two coupled servo hydraulic machines to achieve equal displacement and constant total applied load, mimicking the behavior of a pressurized cylinder subjected to through wall thermal transients. The bars were heated and cooled out of phase to generate thermally induced loading superimposed on a constant mean stress. Scoping test results at slow heating and cooling rates are presented for different mean stresses and thermal histories.",

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AB - A two-bar thermal ratcheting procedure has been implemented to Alloy 617 at very high temperatures. The procedure is based on two bars tested on two coupled servo hydraulic machines to achieve equal displacement and constant total applied load, mimicking the behavior of a pressurized cylinder subjected to through wall thermal transients. The bars were heated and cooled out of phase to generate thermally induced loading superimposed on a constant mean stress. Scoping test results at slow heating and cooling rates are presented for different mean stresses and thermal histories.

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Two-bar thermal ratcheting for alloy 617 - Part I: Scoping tests

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