Solidification cracking susceptibility of ferritic stainless steels using Modified Varestraint Transvarestraint (MVT) method

被引：2

作者：

Konadu, D. S. ^{[1
,2
]}

Pistorius, P. G. H. ^{[1
]}

Du Toit, M. ^{[3
]}

Griesche, Axel ^{[4
]}

机构：

[1] Univ Pretoria, Dept Mat Sci & Met Engn, ZA-0002 Pretoria, South Africa

[2] Univ Ghana, Dept Mat Sci & Engn, POB LG 77, Accra, Ghana

[3] Univ Wollongong, Sch Mech Mat Mechatron & Biomed Engn, Wollongong, NSW, Australia

[4] Fed Inst Mat Res & Testing, Bundesanstalt Materialforsch & Prufung BAM, Berlin, Germany

来源：

SADHANA-ACADEMY PROCEEDINGS IN ENGINEERING SCIENCES | 2019年 / 44卷 / 09期

关键词：

Modified Varestraint Transvarestraint; solidification cracking; ferritic stainless steel; microstructure; welding; susceptibility;

D O I：

10.1007/s12046-019-1175-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Modified Varestraint Transvarestraint (MVT) test was used to investigate the solidification cracking susceptibility of an unstabilised, a Nb-stabilised and two (Ti + Nb) dual-stabilised ferritic stainless steels. Two different welding speeds of 6 and 3 mm/s using autogenous gas tungsten arc welding were employed. At the welding speed of 6 mm/s, the high-content (Ti + Nb) steel was resistant and the Nb-stabilised steel was marginally susceptible to solidification cracking. At the welding speed of 3 mm/s, the Nb and the high (Ti + Nb) steels were found to be marginally susceptible to solidification cracking while the unstabilised and low-content (Ti + Nb) grades were resistant to solidification cracking. The weld metal microstructures transverse to the welding direction revealed columnar grains in all the samples for both welding speeds. The ferritic stainless steels were generally resistant to solidification cracking, except the Nb-stabilised steel, which was marginally susceptible to solidification cracking.

引用

页数：6

共 50 条

[1] Solidification cracking susceptibility of ferritic stainless steels using Modified Varestraint Transvarestraint (MVT) method
D S Konadu
P G H Pistorius
M Du Toit
Axel Griesche
Sādhanā, 2019, 44
[2] Comparison of testing of susceptibility to solidification cracking of ferritic stainless steels using two methods
D. S. Konadu
P. G. H. Pistorius
Welding in the World, 2020, 64 : 987 - 997
[3] Comparison of testing of susceptibility to solidification cracking of ferritic stainless steels using two methods
Konadu, D. S.
Pistorius, P. G. H.
WELDING IN THE WORLD, 2020, 64 (06) : 987 - 997
[4] Solidification Cracking Susceptibility Predictions for Stainless Steels
Tayfun Soysal
Berke Erk
Journal of Materials Engineering and Performance, 2023, 32 : 7991 - 7997
[5] Solidification Cracking Susceptibility Predictions for Stainless Steels
Soysal, Tayfun
Erk, Berke
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 2023, 32 (17) : 7991 - 7997
[6] Solidification Cracking Susceptibility of Stainless Steels: New Test and Explanation
Liu, K.
Yu, P.
Kou, S.
WELDING JOURNAL, 2020, 99 (10) : 255S - 270S
[7] The influence of Ti and Nb on solidification cracking of ferritic stainless steels, as determined using self-restrained samples
Konadu, D. S.
Pistorius, P. G. H.
Du Toit, M.
WELDING IN THE WORLD, 2019, 63 (05) : 1163 - 1172
[8] The influence of Ti and Nb on solidification cracking of ferritic stainless steels, as determined using self-restrained samples
D. S. Konadu
P. G. H. Pistorius
M. Du Toit
Welding in the World, 2019, 63 : 1163 - 1172
[9] Back diffusion resisting solidification cracking in austenitic stainless steels
Liang, Song-Mao
Yu, Ping
Zhang, Fan
Kou, Sindo
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2021, 26 (08) : 606 - 613
[10] Theoretical approach to influence of nitrogen on solidification cracking susceptibility of austenitic stainless steels: computer simulation of hot cracking by solidification/segregation models
Ogura T.
Ichikawa S.
Saida K.
Welding International, 2018, 32 (06) : 436 - 444

← 1 2 3 4 5 →