TY - JOUR

T1 - Residual Stress Evolution in Low-Alloyed Steel at Three Different Length Scales

AU - Leitner, Silvia

AU - Winter, Gerald

AU - Klarner, Jürgen

AU - Antretter, Thomas

AU - Ecker, Werner

N1 - Publisher Copyright: © 2023 by the authors.

PY - 2023/3/23

Y1 - 2023/3/23

N2 - Quantitative and qualitative residual stress evolution in low-alloyed steel during heat treatment is investigated on three different length scales for sourgas resistant seamless steel tubes: on the component level, on the level of interdendritic segregation and on precipitate scale. The macroscopic temperature, phase and stress evolution on the component scale result from a continuum model of the heat treatment process. The strain and temperature evolution is transferred to a mesoscopic submodel, which resolves the locally varying chemistry being a result of interdendritic segregation. Within the segregation area and the surrounding matrix precipitates form. They are categorized with respect to their tendency for formation of microscopic residual stresses. After rapid cooling macroscopic stresses up to 700 MPa may form dependent on the cooling procedure. Mesoscopic stresses up to (Formula presented.) 50 MPa form depending on the extent of segregation. Carbides and inclusions occuring in low-alloyed steel are ranked by their tendency for residual stress formation in the iron matrix. This scale bridging study gives an overview of residual stresses, their magnitude and evolution on three different length scales in low-alloyed steels and the results presented can serve as a input for steel design.

AB - Quantitative and qualitative residual stress evolution in low-alloyed steel during heat treatment is investigated on three different length scales for sourgas resistant seamless steel tubes: on the component level, on the level of interdendritic segregation and on precipitate scale. The macroscopic temperature, phase and stress evolution on the component scale result from a continuum model of the heat treatment process. The strain and temperature evolution is transferred to a mesoscopic submodel, which resolves the locally varying chemistry being a result of interdendritic segregation. Within the segregation area and the surrounding matrix precipitates form. They are categorized with respect to their tendency for formation of microscopic residual stresses. After rapid cooling macroscopic stresses up to 700 MPa may form dependent on the cooling procedure. Mesoscopic stresses up to (Formula presented.) 50 MPa form depending on the extent of segregation. Carbides and inclusions occuring in low-alloyed steel are ranked by their tendency for residual stress formation in the iron matrix. This scale bridging study gives an overview of residual stresses, their magnitude and evolution on three different length scales in low-alloyed steels and the results presented can serve as a input for steel design.

KW - finite element method

KW - heat treatment

KW - higher order stresses

KW - low-alloyed steel

KW - phase transformation

KW - residual stresses

KW - Residual stress

KW - low-alloyed steel

KW - three different length scales

UR - http://www.scopus.com/inward/record.url?scp=85152653845&partnerID=8YFLogxK

U2 - 10.3390/ma16072568

DO - 10.3390/ma16072568

M3 - Article

AN - SCOPUS:85152653845

VL - 16.2023

JO - Materials

JF - Materials

SN - 1996-1944

IS - 7

M1 - 2568

ER -