CHARACTERIZATION OF THE EMBRITTLEMENT TENDENCY OF A CATHODICALLY POLARIZED SUPERFERRITIC STAINLESS STEEL IN SEAWATER (HYDROGEN DAMAGE, INTERGRANULAR)

Author

• RAVI M. KRISHNAMURTHY

Author Type

Graduate Student

Date of Award

1986

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Thesis/Dissertation Advisor [Chair]

Hartt, William H.

Abstract

In order to investigate the cracking tendency of cathodically polarized SEACURE superferritic stainless steel, a series of potentiostatically controlled tests were conducted in flowing natural seawater. U-bend and tensile specimens were used to determine the threshold potential and limiting fracture stress. The microstructure was examined using a metallurgical microscope and a chemical analysis was conducted across the grain boundary. These results were then correlated to hydrogen assisted cracking, by performing SEM and EDAX analyses on fractured U-bend and tensile samples. Finally a model was developed which explained the predominantly intergranular cracking in the static stress condition and also accommodated the transgranular failure during dynamic loading.

Extent

66 p.

Comments

College of Engineering and Computer Science|Thesis (M.S.E.)--Florida Atlantic University, 1986.|FAU Electronic Theses and Dissertations Collection|College of Engineering and Computer Science

Recommended Citation

KRISHNAMURTHY, RAVI M., "CHARACTERIZATION OF THE EMBRITTLEMENT TENDENCY OF A CATHODICALLY POLARIZED SUPERFERRITIC STAINLESS STEEL IN SEAWATER (HYDROGEN DAMAGE, INTERGRANULAR)" (1986). Electronic Theses and Dissertations 1980 - 1989. 426.
https://digitalcommons.fau.edu/etd_general_3/426

Identifier

FADT14325

Format

pdf