TY - GEN
T1 - THE INFLUENCE OF HYDROGEN ON THE ELASTIC MODULUS OF 316L AND XM-19 AUSTENITIC STAINLESS STEELS
AU - Scott, K. M.
AU - Mendez, P. F.
AU - Sridhar, S.
N1 - Funding Information:
This work was funded by Emerson, Boulder, CO, which the authors gratefully acknowledge. Sincere gratitude to Dr. Chris San Marchi of Sandia National Laboratories for invaluable conversation, insight and hydrogen charging of the test coupons. Thanks to Dr. Andy Slifka of NIST, Boulder, Co. for early conversation and insight. Thanks to John Mulcahy, producer and distributor of REW software used in this work.
Publisher Copyright:
Copyright © 2022 by ASME.
PY - 2022
Y1 - 2022
N2 - Elastic modulus of 316L and XM-19 austenitic stainless steel was characterized before and after hydrogen charging using impulse excitation. Four coupons of each alloy were subsequently charged at 300 C and 138 MPa for 13 days with gaseous hydrogen to ensure an equilibrium concentration of hydrogen was achieved. Elastic modulus was re-characterized after charging. In 316L, the elastic modulus increased by 0.28% (0.546 GPa) on average on three of the samples, while one sample did not show a significant change. In XM-19, the elastic modulus increased by 0.38% (0.734 GPa) on average. The increase in both XM-19 test coupons and three 316L test coupons was statistically significant, while the increase in the other 316L test coupon was not.
AB - Elastic modulus of 316L and XM-19 austenitic stainless steel was characterized before and after hydrogen charging using impulse excitation. Four coupons of each alloy were subsequently charged at 300 C and 138 MPa for 13 days with gaseous hydrogen to ensure an equilibrium concentration of hydrogen was achieved. Elastic modulus was re-characterized after charging. In 316L, the elastic modulus increased by 0.28% (0.546 GPa) on average on three of the samples, while one sample did not show a significant change. In XM-19, the elastic modulus increased by 0.38% (0.734 GPa) on average. The increase in both XM-19 test coupons and three 316L test coupons was statistically significant, while the increase in the other 316L test coupon was not.
KW - austenitic stainless steel
KW - elastic modulus
KW - Hydrogen
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U2 - 10.1115/PVP2022-84717
DO - 10.1115/PVP2022-84717
M3 - Conference contribution
AN - SCOPUS:85142382214
T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
BT - Materials and Fabrication
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2022 Pressure Vessels and Piping Conference, PVP 2022
Y2 - 17 July 2022 through 22 July 2022
ER -