Analysis of Residual Stresses During Heat Treatment of Large Forged Shafts Considering Transformation Plasticity and Creep Deformation

Yanagisawa, Yusuke; Kishi, Yasuhiro; Sasaki, Katsuhiko

doi:10.1007/s11223-017-9863-7

Cited by 5 publications

(7 citation statements)

References 13 publications

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“…7 has a great influence on the simulation accuracy of the retained austenite content after the quenching process. The α values of the samples are significantly higher than other scholars' recommended value of 0.011 [10], as shown in Table 4. Fig.…”

Section: Determinants Of Retained Austenite Contentmentioning

confidence: 58%

“…The α values of the C 0.21 %, C 0.34 %, C 0.56 %, and C 0.66 % samples are 0.0195, 0.0207, 0.0201, and 0.0205, as shown in Table 4. The values are significantly higher than other scholars' recommended values [10]. The Mf temperatures of the C 0.73 %, C 0.82 % samples are lower than the cooling temperature limit of the dilatometer (50 °C), as a result, the martensite transformation is incomplete, and the α value cannot be directly obtained.…”

Section: Martensite Transformation Kinetic Parametermentioning

confidence: 60%

“…The Desalos model is widely used in finite element software, and is also the model used in this research. In the Desalos model, the transformation plasticity coefficient K is of great importance [10,11]. Much of the previous work was devoted to determining the K value of an alloy with a fixed composition [12], besides the K value was considered to be slightly affected by chemical composition [2].…”

Section: Introduction *mentioning

confidence: 99%

See 2 more Smart Citations

Stress Field Simulation and its Experimental Verification of Carburizing-Quenching Process Performed on 18CrNiMo7-6 Steel

Qin

WANG

2023

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The carburizing and quenching process of 18CrNiMo7-6 steel was performed through simulation methods and experiments. The study was carried out to accurately predict the residual stress distribution of carburized samples after the quenching process. The stress and retained-austenite amount were measured via X-ray diffraction. Similarly, the carbon content was determined using a carbon sulfur analyzer, respectively. A detailed model with the coupling of thermal, metallic, and mechanical fields was built to predict the evolution of the stress field during the quenching process. The carburized “thoroughly” specimens at different carbon potentials were used to obtain the required mechanical property parameters and dilatometric parameters for FEM simulation. According to the results, the martensite transformation kinetic parameters α value of 18CrNiMo7-6 alloy steel should be 0.0202. With the increase of carbon content, the changing trend of the transformation plasticity coefficient K appeared as a 'tick' shape. A compressive residual stress field was generated at the carburized layer surface after the quenching process, and the maximum value of 340 MPa occurred at ~ 0.9 mm below the surface. The carbon profile and residual stress fields predicted from the FEM simulation corresponded closely to the experimentally determined results.

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Section: Determinants Of Retained Austenite Contentmentioning

confidence: 58%

Section: Martensite Transformation Kinetic Parametermentioning

confidence: 60%

Section: Introduction *mentioning

confidence: 99%

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Stress Field Simulation and its Experimental Verification of Carburizing-Quenching Process Performed on 18CrNiMo7-6 Steel

Qin

WANG

2023

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“…The feed rate was set taking into account the same number of repetitive deformations at one point of the part surface during roller burnishing. The degree of feed influence was related to the size of the deformation zone, in particular, to the width of the contact spot, and can be characterized by the parameter k s , which determines the multiplicity of the load application [39]:…”

Section: Materials Original Equipment Experimental Techniques and mentioning

confidence: 99%

Application of roller burnishing technologies to improve the wear resistance of submerged pump parts made of powder alloys

Kropotkina

Zykova

Shein

et al. 2018

Mechanics & Industry

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This paper presents experimental studies of the influence of surface plastic deformation (SPD) (roller burnishing) on the properties of the surface layer of a part “guide apparatus” of the centrifugal submersible pump for oil production. The parts made of composite powder alloys based on the iron-copper system were taken as an object of researches. The microstructure of the surface layer of the samples, surface roughness, microhardness, and hardness were studied. Testing of the samples for the surface layer resistance to abrasive wear according to the Calotest method showed a decrease in the wear intensity by 1.5–1.6 times in comparison to samples without SPD.

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“…The fatigue life of machine parts depends on the thickness of the plastically deformed surface layer d. The depth of the deformation-reinforced surface layer d in the case of machine parts that operate under fatigue conditions becomes the basic parameter determining the conditions of burnishing [14,15]. The aim of reinforcement burnishing is to achieve the maximum possible depth of plastic deformation of the surface layer [16,17] which will not cause microcracks of the surface [18,19].…”

mentioning

confidence: 99%

Assessment of the Depth of the Deformed Layer in the Roller Burnishing Process

Kowalik¹,

Mazur²,

Trzepieciński

2018

Strength Mater

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à Òåõíîëîãî-ãóìàí³òàðíèé óí³âåðñèòåò ³ì. Êàçèìèðà Ïóëàâñüêîãî â Ðàäîì³, ²íñòèòóò ìàøèíîáóäóâàííÿ, Ðàäîì, Ïîëüùà á Òåõíîëîã³÷íèé óí³âåðñèòåò AEåøóâà, Ôàêóëüòåò ìàøèíîáóäóâàííÿ òà àåðîíàâòèêè, AEåøóâ, Ïîëüùà Íàâåäåíî ìåòîäèêè âèçíà÷åííÿ ãëèáèíè ïëàñòè÷íî äåôîðìîâàíîãî âåðõíüîãî øàðó ìàòåð³àëó ïðè îáêî÷óâàíí³ ðîëèêîì. Àíàë³òè÷íèé ìåòîä ðîçðîáëåíî íà îñíîâ³ òåîð³¿ Ãåðöà-Áåëÿºâà. Ãëèáèíó òàêîãî øàðó îòðèìàíî ÿê ôóíêö³þ çóñèëëÿ îáêî÷óâàííÿ, ì³öíîñò³ ìàòåð³àëó ³ ãåîìåòð³¿ ðîëèêà. Àíàë³òè÷íèé ðîçâ'ÿçîê ïåðåâ³ðåíî îðèã³íàëüíèì ìåòîäîì, ùî áàçóºòüñÿ íà âèì³ðþâàíí³ ëèöüîâîãî ïðîô³ëþ ê³ëåöü. Ðîçðîáëåíî ìàòåìàòè÷íó ìîäåëü òåîðåòè÷íîãî ðîçâ'ÿçêó ³ ïëàí åêñïåðèìåíò³â. ×èñåëüíå ìîäåëþâàííÿ ãëèáèíè ïëàñòè÷íî äåôîðìîâàíîãî øàðó âèêîíàíî ìåòîäîì ñê³í÷åííèõ åëåìåíò³â. Ðåçóëüòàòè, îòðèìàí³ àíàë³òè÷íèì ³ åêñïåðèìåíòàëüíèì ìåòîäàìè, ïîêàçóþòü ¿õ õîðîøó â³äïîâ³äí³ñòü.Êëþ÷îâ³ ñëîâà: ãëèáèíà äåôîðìîâàíîãî øàðó, ïëàñòè÷íà äåôîðìàö³ÿ, ñê³í÷åííîåëåìåíòíèé ìåòîä, îáêî÷óâàííÿ ðîëèêîì.Introduction. Many material forming technologies such as burnishing, thread rolling, spline rolling, knurling, and drawing lead to both the deformation of the surface layer of the material and changes in its properties. This phenomenon introduces compressive stresses into the surface layer increasing its surface hardness, and both static and fatigue strength [1,2]. Under the pressure of the rounded tool, deformation not only occurs in the plastic forming processes, but also in turning, milling, grinding [3] or even laser surface treatment [4]. The deformation of the surface layer occurs during deep drawing of the thin sheet metal, where the complex stress state caused by the rounded tools leads to the change in friction conditions and loss of stability of the sheet material undergoing plastic tension [5,6]. The scale of plastic deformation in the above processes is smaller than in roller burnishing, but it is always possible to observe a plastically deformable surface layer. Plastic deformations of the metal surface can occur under relatively small forces, i.e. during measurements or assembly [7][8][9]. Roller burnishing causes strain hardening of the material and introduces compressive stresses into the surface layer that increase the hardness [10] and strength of the surface layer of the material [11]. In order to obtain greater depths of the

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Analysis of Residual Stresses During Heat Treatment of Large Forged Shafts Considering Transformation Plasticity and Creep Deformation

Cited by 5 publications

References 13 publications

Stress Field Simulation and its Experimental Verification of Carburizing-Quenching Process Performed on 18CrNiMo7-6 Steel

Stress Field Simulation and its Experimental Verification of Carburizing-Quenching Process Performed on 18CrNiMo7-6 Steel

Application of roller burnishing technologies to improve the wear resistance of submerged pump parts made of powder alloys

Assessment of the Depth of the Deformed Layer in the Roller Burnishing Process

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