Use of implant testing to evaluate the susceptibility of HY-130 steel weldments to hydrogen embrittlement.
Authors
Mason, Bradley J.
Subjects
implant testing
hydrogen embrittlement
HY-130 steel
hydrogen embrittlement
HY-130 steel
Advisors
Challenger, K.D.
Date of Issue
1981-12
Date
December 1981
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The cracking that may occur near the fusion zone of a
steel weldment can often be attributed to the embrittlement
of the microstructure by hydrogen induced during the welding
process. The modified implant test was used in this case
to evaluate the hydrogen-assisted cracking susceptibility
of three separate heats of HY-130 steel, which included both
cast and wrought plate. Welding was accomplished by the gas
metal-arc spray transfer process. Cracking in all plates
was observed to initiate and propagate in an area near the
weld interface. The exact location of the fractures varied
according to the amounts of diffusible hydrogen present and
the type of material being tested. The effect of stress
intensity together with hydrogen content on the mode of fracture
present is also addressed in detail.
Type
Thesis
Description
Series/Report No
Department
Mechanical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.