Faculty Sponsor
Patrick Ferro, Gonzaga University
Research Project Abstract
Three different strain rates were used to tensile test 304 stainless dogbone test specimens. Previous work by other researchers, at Gonzaga and other institutions, have shown that exposure to gaseous hydrogen affects the strain rate dependence of tensile strength. Exposure to one atmosphere of gaseous hydrogen for a one-week duration may decrease the tensile strength at low strain rates (e.g. 0.016in/min). The current work is based on performing tensile tests at the low strain rate as well as at strain rates one order of magnitude above (e.g. 0.15 in/min) and below (e.g. 0.002 in/min). For the low strain rate both exposed and unexposed samples are tested while the lowest and highest strain rates only use unexposed specimens. The new data will be compared to previous research results.
Session Number
PS2
Location
Graves Gym
Abstract Number
PS2-m
Strain Rate Effects on Hydrogen Embrittlement Results for 304 Stainless Steel
Graves Gym
Three different strain rates were used to tensile test 304 stainless dogbone test specimens. Previous work by other researchers, at Gonzaga and other institutions, have shown that exposure to gaseous hydrogen affects the strain rate dependence of tensile strength. Exposure to one atmosphere of gaseous hydrogen for a one-week duration may decrease the tensile strength at low strain rates (e.g. 0.016in/min). The current work is based on performing tensile tests at the low strain rate as well as at strain rates one order of magnitude above (e.g. 0.15 in/min) and below (e.g. 0.002 in/min). For the low strain rate both exposed and unexposed samples are tested while the lowest and highest strain rates only use unexposed specimens. The new data will be compared to previous research results.
