Evaluation of the creep–fatigue damage mechanism of Type 316L and Type 316LN stainless steel

Kim, Dae Whan; Chang, Jonghwa; Ryu, Woo Seog

doi:10.1016/j.ijpvp.2007.11.013

Cited by 69 publications

(18 citation statements)

References 15 publications

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“…Ueno et al reported the substantial improvement in monotonic and cyclic strength for austenitic 316L stainless steel by nanostructuring. Nitrogen addition was effective to increase tensile strength with little reduction in elongation for 316L(N) . Nitrogen addition was also effective to increase LCF life, and the increasing rate was more significant at 600 °C than at room temperature.…”

Section: Introductionmentioning

confidence: 92%

Low‐cycle fatigue of 316L stainless steel under proportional and nonproportional loadings

Jin

Tian

et al. 2016

Fatigue Fract Eng Mat Struct

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This paper discusses low‐cycle fatigue characteristics of 316L stainless steel under proportional and nonproportional loadings. Tension–torsion multiaxial low‐cycle fatigue tests were performed using five strain paths. Additional hardening was observed under nonproportional loadings and was more significant in tests with larger nonproportionality. Mises equivalent strain, Smith–Watson–Topper, Fatemi–Socie, Kandil–Brown–Miller and nonproportional strain parameters were applied to the experimental data to evaluate the multiaxial low‐cycle fatigue damage. The applicability of the damage laws to practical design was discussed.

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Section: Introductionmentioning

confidence: 92%

Low‐cycle fatigue of 316L stainless steel under proportional and nonproportional loadings

Jin

Tian

et al. 2016

Fatigue Fract Eng Mat Struct

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“…Addition of nitrogen to austenitic stainless steels changes the stacking fault energy and hence affects the dislocations structure and fatigue behavior. Planar dislocation arrangement due to nitrogen alloying is thought to be one of the reasons for the enhanced fatigue properties [50,51]. Maeng and Kim [52] recently compared the dislocation structure at the fatigue crack tips of 316L and 316LN stainless steels.…”

Section: Roles Of Nitrogen In Medical Stainless Steelsmentioning

confidence: 99%

Nickel-free austenitic stainless steels for medical applications

Yang

Ren

2010

Science and Technology of Advanced Materials

210

103

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The adverse effects of nickel ions being released into the human body have prompted the development of high-nitrogen nickel-free austenitic stainless steels for medical applications. Nitrogen not only replaces nickel for austenitic structure stability but also much improves steel properties. Here we review the harmful effects associated with nickel in medical stainless steels, the advantages of nitrogen in stainless steels, and emphatically, the development of high-nitrogen nickel-free stainless steels for medical applications. By combining the benefits of stable austenitic structure, high strength and good plasticity, better corrosion and wear resistances, and superior biocompatibility compared to the currently used 316L stainless steel, the newly developed high-nitrogen nickel-free stainless steel is a reliable substitute for the conventional medical stainless steels.

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“…Many engineering components, such as gas turbine blades, operate at high temperature under alternating loads with a low frequency. This type of loading, which is known as "low cycle fatigue-creep," is the subject of many research studies, especially during the last decade [14][15][16][17]. Due to the viscoplastic behavior of the materials at high temperature, shakedown or ratcheting should not be excluded in these studies.…”

mentioning

confidence: 99%

“…Therefore, a realistic assessment of lifetime is critical for the prevention of failures. In some studies, the ASME code method has been used for predicting the creep-fatigue life [14,15]. This method is not exact, insofar as it's basis is strictly phenomenological, with no mechanistic component [14].…”

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confidence: 99%

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Accelerating Effects of Cyclic Creep Due to the Alternative Load Compared with Constant Load for CD 304L

Daei-Sorkhabi

Vakili‐Tahami

2015

Strength Mater

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In this paper, by using a series of uniaxial tests, accelerating effects of cyclic creep due to the alternative load are compared with constant load creep behavior of CD 304L. Austenitic stainless steel 304L is used mostly in power generation and petrochemical industries due to its high temperature creep-fatigue resistance. Test samples have been obtained from cold drawn bars and the material conforms to ASTM A276-05A specifications. Uniaxial tests have been carried out at temperatures of 687, 717, and 737°C under constant and alternating loads. The effects of alternating load and the hold time on the mechanical behavior of the material and fatigue or creep damage values have been studied. The results show the strong interaction between these two damage mechanisms. It has been observed that due to the high temperature level, creep damage is dominant even in tests with very short hold times. Also, it has been shown that by increasing the hold time, the creep strain rate increases and consequently, the creep lifetime reduces. Most importantly, the results highlight the major effect of the alternating loads in increasing creep strain rate and reducing the creep lifetime compared with the constant load tests with the same average stress. In other words, the creep lifetime under alternating load is much shorter than the creep lifetime at constant load test carried out with the average load value.Introduction. Many engineering parts, which find applications in power generation and petrochemical plants, operate at high temperature under mechanical loads. In practice, level of operating temperature or the mechanical load may vary with time. Therefore, different mechanisms of failure can occur, which depend on the nature and history of termomechanical loadings. The important failure mechanisms from this point of view are as follows:(i) fatigue, which is usually faced when the engineering part operates at temperatures below 0.5T melt (T melt is melting temperature in Kelvin) and at alternating load with low stresses. Engineering components are often subjected to fatigue loading under stress-controlled conditions. The existing models describe the fatigue of engineering components including the Goodman equation [1,2], the modified Goodman equations [1, 3], the Smith-WatsonTopper parameter [4], the Walker parameter [5], and Dowling equation [6];(ii) creep, which occurs at high temperatures (above 0.5T melt ) under mechanical loads. Creep implies a time-dependant plasticity: after a sufficient elapse of time, either the viscoplastic strain becomes so large that the original shape of the structure is altered, or the creep rupture occurs. Creep is critical in a number of applications, for example, components used in power-generating systems and chemical plants, where the service temperature is high. Different models have been proposed, which explain creep behavior of materials [7];

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Evaluation of the creep–fatigue damage mechanism of Type 316L and Type 316LN stainless steel

Cited by 69 publications

References 15 publications

Low‐cycle fatigue of 316L stainless steel under proportional and nonproportional loadings

Low‐cycle fatigue of 316L stainless steel under proportional and nonproportional loadings

Nickel-free austenitic stainless steels for medical applications

Accelerating Effects of Cyclic Creep Due to the Alternative Load Compared with Constant Load for CD 304L

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