Sensitivity Analysis of Distortion of Carburized Steel Shafts Using Computer Simulations

Date

2016-12-01

Author

Yazır, Büşra
Evcil, Elif
Yıldız, Seçil
Davut, Kemal
Şimşir, Caner

Metadata

Show full item record

Item Usage Stats

238
views

0
downloads

Carburizing and subsequent quenching heat treatments are commonly used industrial processes to improve the properties and performance of steel shafts. Undesired dimensional and shape changes (distortion) related to these treatments are still the most frequent reason for expensive and time consuming corrective operations, low performance during service and even product rejection. The major aim of this study is to identify the suitable control parameters for subsequent optimization of the carburized quenching of stepped shafts made of DIN 16MnCr5 (1.7131) steel. Another aim is to estimate inevitable experimental variations and determine the accuracy of computer simulations in presence of experimental uncertainties in the process parameters. For this purpose, a local sensitivity analysis is conducted using computer simulations in which each control parameter is perturbed around its reference state and the associated dimensional changes were correlated to those perturbations by a dimensionless sensitivity index. The results indicated carburization temperature as the most sensitive parameters while carbon activity in the cementation step, temperature of quenching are ranked second. On the other hand, dimensional changes were found to be insensitive to carburizing and quenching time whereas quenched oil temperature and carbon activity during soaking step before the quenching are determined as less sensitive parameters. ResearchGate Logo Discover the world's research 19+ million members 135+ million publications 700k+ research projects Join for free

URI

http://www1.metalurji.org.tr/immc2016/IMMC2016_Bildiriler.pdf
https://hdl.handle.net/11511/79414

Conference Name

18th International Metallurgy Materials Congress (IMMC2016)

Collections

Department of Metallurgical and Materials Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Wear behavior of H10A AISI/SAE steel nitrided by various methods Yurtışık, Koray; Sarıoğlu, Filiz; Ankara, Alpay; Department of Metallurgical and Materials Engineering (2002) Wear performance of salt-bath, vacuum, ion nitrided and duplex treated (nitrided and ceramic coated by physical vapor deposition technique) steel dies (H10A AISI/SAE) were studied. The dies were used for forging of steel pastes (52100 AISI/SAE) at 1050°C under 700 MPa for 0.3 - 0.4 seconds during production of bearing rings. The nitrided and un-nitrided dies were investigated via optical and scanning electron microscopy, x-ray diffraction and micro-hardness determination procedures. The service lives of die...
Fatigue Cracking of Hybrid Plasma Gas Metal Arc Welded 2205 Duplex Stainless Steel Yurtışık, Koray; Tirkeş, Süha (2014-01-01) Contrary to other keyhole welding applications on duplex stainless steels, a proper cooling time and a dilution were achieved during hybrid plasma gas metal arc welding that provided sufficient reconstructive transformation of austenite without sacrificing its high efficiency and productivity. Simultaneous utilization of keyhole and metal deposition in the hybrid welding procedure enabled us to get an as-welded 11 mm-thick standard duplex stainless steel plate in a single pass. Me examination on hybrid plas...
Usability of three boron compounds for enhancement of flame retardancy in polyethylene-based cable insulation materials İBİBİKCAN, Esin; Kaynak, Cevdet (SAGE Publications, 2014-03-01) It is known that for the production of halogen-free cable insulation materials based on polyethylene, very high amounts of traditional metal hydroxide flame retardants such as 65 wt% aluminum hydroxide are required to fulfill international directives. In this respect, the aim of this study was to reveal possible enhancement effects of three boron compounds on the flame retardancy of two cable insulation materials: low-density polyethylene and its blend with ethylene vinyl acetate both loaded with aluminum h...
PERFORMANCE ASSESSMENT OF COMMERCIAL HEAT PIPES WITH SINTERED AND GROOVED WICKS UNDER NATURAL CONVECTION Atay, Atakan; Sariarslan, Busra; Kuscu, Yigit F.; Saygan, Samet; Akkus, Yigit; Gurer, A. Turker; Cetin, Barbaros; Dursunkaya, Zafer (2019-01-01) Heat pipes are widely used in thermal management of high heat flux devices due to their ability of removing high heat loads with small temperature differences. While the thermal conductivity of standard metal coolers is approximately 100-500 W/m.K, effective thermal conductivities of heat pipes, which utilize phase-change heat transfer, can reach up to 50,000 W/m.K. In industrial applications, commercially available heat pipes are commonly preferred by thermal engineers due to their low cost and versatility...
Compressive strength development of calcium aluminate cement-GGBFS blends Kirca, Onder; Yaman, İsmail Özgür; Tokyay, Mustafa (2013-01-01) The compressive strength development of calcium aluminate cement (CAC) and ground granulated blast furnace slag (GGBFS) blends that were subjected to different curing regimes are investigated. The blends had GGBFS/CAC ratios between 0% and 80%, by mass. Mortar specimens, prepared with a water:binder:sand ratio of 1:2:6, were subjected to seven different curing regimes and the compressive strengths were monitored up to 210 days. In order to understand the effect of temperature on compressive strength develop...

Citation Formats

B. Yazır, E. Evcil, S. Yıldız, K. Davut, and C. Şimşir, “Sensitivity Analysis of Distortion of Carburized Steel Shafts Using Computer Simulations,” presented at the 18th International Metallurgy Materials Congress (IMMC2016), İstanbul, Türkiye, 2016, Accessed: 00, 2021. [Online]. Available: http://www1.metalurji.org.tr/immc2016/IMMC2016_Bildiriler.pdf.