Demonstration of a chamber for strain mapping of steel specimens under mechanical load in a hydrogen environment by synchrotron radiation

被引：4

作者：

Connolly, Matthew ^{[1
]}

Park, Jun-Sang ^{[2
]}

Bradley, Peter ^{[1
]}

Lauria, Damian ^{[1
]}

Slifka, Andrew ^{[1
]}

Drexler, Elizabeth ^{[1
]}

机构：

[1] NIST, 325 Broadway, Boulder, CO 80305 USA

[2] Argonne Natl Lab, 9700 Cass Ave,Bldg 401, Lemont, IL 60439 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2018年 / 89卷 / 06期

关键词：

X-RAY-DIFFRACTION; DEFORMATION;

D O I：

10.1063/1.5012541

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We demonstrate a hydrogen gas chamber suitable for lattice strain measurements and capturing radiographs of a steel specimen under a mechanical load using high energy synchrotron x-rays. The chamber is suitable for static and cyclic mechanical loading. Experiments were conducted at the 1-ID-E end station of the Advanced Photon Source, Argonne National Laboratory. Diffraction patterns show a high signal-to-noise ratio suitable for lattice strain measurements for the specimen and with minimal scattering and overlap from the gas chamber manufactured from aluminum. In situ radiographs of a specimen in the hydrogen chamber show the ability to track a growing crack and to map the lattice strain around the crack with high spatial and strain resolution.

引用

页数：7

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