Impression Creep Behavior of 316LN Stainless Steel

Mathew, M.D.; Naveena, .; Vijayanand, D.

doi:10.1007/s11665-012-0290-4

Cited by 27 publications

(11 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nitrogen alloying enriched the chromium within the passive film [4]. In terms of mechanical properties, the steady state creep rate decreased significantly with increasing nitrogen content [5,6], and a similar phenomenon was also found in impression creep tests [7,8]. When the N content was no more than 0.14%, 316LN stainless steel with higher N content showed better crack growth resistance at ambient [9] and high temperature [10].…”

Section: Introductionsupporting

confidence: 52%

Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel

Guo

Wang

Zhou

et al. 2015

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

316LN stainless steel with 0.08%N (08N) and 0.17%N (17N) was compressed at 1073–1473 K and 0.001–10 s−1. The hot deformation behavior was investigated using stress-strain curve analysis, processing maps, and so forth. The microstructure was analyzed through electron backscatter diffraction analysis. Under most conditions, the deformation resistance of 17N was higher than that of 08N. This difference became more pronounced at lower temperatures. The strain rate sensitivity increased with increasing temperature for types of steel. In addition, the higher the N content, the higher the strain rate sensitivity. Hot deformation activation energy increased from 487 kJ/mol to 549 kJ/mol as N concentration was increased from 0.08% to 0.17%. The critical strain for initiation of dynamic recrystallization was lowered with increasing N content. In the processing maps, both power dissipation ratio and unstable region increased with increasing N concentration. In terms of microstructure evolution, N promoted dynamic recrystallization kinetic and decreased dynamic recrystallization grain size. The grain growth rate was lower in 17N than in 08N during heat treatment. Finally, it was found that N favored twin boundary formation.

show abstract

Section: Introductionsupporting

confidence: 52%

Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel

Guo

Wang

Zhou

et al. 2015

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…where v imp is the impression velocity, B is a constant, σ imp is the applied impression stress, n is the stress exponent, Q is the creep activation energy, T is the test temperature and R is the universal gas constant. Impression velocity (v imp ), the rate at which the cylindrical punch penetrates the specimen to a depth (h) in time (t) [38], is given by…”

Section: Creep Mechanismmentioning

confidence: 99%

Impression creep behaviour of TiB₂ particles reinforced steel matrix composites

Sahoo

Jha

Mahata

et al. 2018

Materials Science and Technology

View full text Add to dashboard Cite

Impression creep behaviour of the powder metallurgy processed steel matrix composites was investigated under constant stress at different temperatures in the range of 873–973 K. By using the power-law relationship, the estimated activation energy for unreinforced steel was found to be 149 kJ mol−1 and steel reinforced with 2 and 4 vol.-% TiB2 was found to be 298 and 338 kJ mol−1, respectively indicating better creep resistance of the reinforced steel matrix composites. Dislocation creep is the dominant creep mechanism based on the calculated values of stress exponent and activation energy. Hence, this method can be used to assess the potential of steel matrix composites for use as structural materials for high-temperature application.

show abstract

“…[2][3][4]. The small ring creep test method [4,5]and the impression creep test technique [6][7][8], have been used to determine secondary creep rate data for materials but they are unable to provide tertiary creep data. Small, sub-sized uniaxial specimen tests have been used to obtain the full creep strain curves.…”

Section: Introductionmentioning

confidence: 99%

Small Two-Bar Specimen Creep Testing of Grade P91 Steel at 650°C

Ali

Hyde

Sun

2016

High Temperature Materials and Processes

View full text Add to dashboard Cite

A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. AbstractCommonly used small creep specimen types, such as ring and impression creep specimens, are capable of providing minimum creep strain rate data from small volumes of material. However, these test types are unable to provide the creep rupture data. In this paper the recently developed Two-bar specimen type, which can be used to obtain minimum creep strain rate and creep rupture creep data, from small volumes of material is described. Conversion relationships are used to convert (i) the applied load to the equivalent uniaxial stress, and (ii) the load line deformation rate to the equivalent uniaxial creep strain rate. The effects of the specimen dimension ratios on the conversion factors are also discussed in this paper. This paper also shows comparisons between Two-bar specimen creep test data and the corresponding uniaxial creep test data, for grad P91 steel at 650 o C.

show abstract

Impression Creep Behavior of 316LN Stainless Steel

Cited by 27 publications

References 26 publications

Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel

Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel

Impression creep behaviour of TiB₂ particles reinforced steel matrix composites

Small Two-Bar Specimen Creep Testing of Grade P91 Steel at 650°C

Contact Info

Product

Resources

About

Impression Creep Behavior of 316LN Stainless Steel

Cited by 27 publications

References 26 publications

Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel

Effect of Nitrogen Content on Hot Deformation Behavior and Grain Growth in Nuclear Grade 316LN Stainless Steel

Impression creep behaviour of TiB2 particles reinforced steel matrix composites

Small Two-Bar Specimen Creep Testing of Grade P91 Steel at 650°C

Contact Info

Product

Resources

About

Impression creep behaviour of TiB₂ particles reinforced steel matrix composites