bake hardening of automotive steels sciencedirect

(PDF) Failure predictions of DP600 steel sheets using

Calcagnotto M, Adachi Y, Ponge D, Raabe D. Deformation and fracture mechanisms in fine-and ultrafine-grained ferrite/martensite dual-phase steels and the effect of aging. Acta Mater 2011;59:65870. [17] Ramazani A, Bruehl S, Gerber T, Bleck W, Prahl U. Quantification of bake hardening effect in DP600 and TRIP700 steels.

(PDF) Quantification of bake hardening effect in DP600 and

The bake-hardening (BH) treatment is [1619]. used for both DP and TRIP steels to increase the yield strength of DP steels show a strong bake hardening effect for forming of car steels in the final body structure for the same thickness of steel body structural parts. For instance, the crash resistance is sheet. (PDF) Tensile flow behavior of ultra low carbon, low typical high-strength alloy steel. Mater Sci Eng A 2010;527:69806. [12] Larour P. Strain rate sensitivity of automotive sheet steels:inuence of plastic [34] Lin YC, Chen MS, Zhong J. Effects of deformation temperatures on stress/strain strain, strain rate, temperature, microstructure, bake hardening

280 results in SearchWorks catalog - Stanford University

9 Indium, 204 Ulrich Schwarz-Schampera. 10 Lithium, 230 Keith Evans. 11 Magnesium, 261 Neale R. Neelameggham and Bob Brown. 12 Platinum-group metals, 284 Gus Gunn. 13 Rare earth elements, 312 Frances Wall. 14 Rhenium, 340 Tom A. Millensifer, Dave Sinclair, Ian Jonasson and Anthony Lipmann. Automotive Steels - 1st Edition - ElsevierNov 26, 2016 · Dr Radhakanta Rana is a research associate at the Advanced Steel Processing and Products Research Center, Colorado School of Mines, USA. He has been engaged in automotive materials research for the last 11 years working on various types of steels including interstitial free steels, TRIP-aided bainitic ferritic steels, complex phase steels, medium and high Mn steels, high Al low-density steels

Effects of Quenching and Tempering on the Microstructure

The mechanism of bake hardening is an interaction process of the mobile dislocations and interstitial carbon atoms in the ferrite grain interior [9,10]. Consequently, the bake hardening behavior mainly depends on the mobile dislocation density and the amount of solute carbon atoms in the low carbon and ultra low carbon steels. Evren ALTINOK - Technical Manager - Mitalon Innovative The parts are then welded in the body shop, and the body in white goes to the paint shop. The last stage of the paint shop cycle is baking. Most steels yield strength changes during this paint bake cycle. Bake hardening (and in some cases, bake softening) is measured by Bake Hardening Index (BHI) as defined by EN 10325-2006.

Fast age-hardening response of Al-Mg - sciencedirect

2 days ago · Additionally, the highest bake hardening increment of the alloy can reach 145.2MPa, which is much higher than those of traditional Al-Mg-Si- (Cu) alloys (such as, 6016 and 6111 alloys). International Journal of Minerals, Metallurgy and MaterialsInternational Journal of Minerals, Metallurgy and Materials (IJMMM, ISSN 1674-4799, CN 11-5787/TF, monthly, started in 1994, formerly known as Journal of University of Science and Technology Beijing) is an international journal devoted to publishing original research articles (and occasional invited reviews) on all aspects of minerals processing, physical metallurgy, process metallurgy, and

Journal of Materials Processing Technology

lists available at ScienceDirect Journal of Materials Processing Technology jo al., 2013).Ultra-low carbon extra-deep drawing steel DC54D is also widely used as auto body panels along with DP steels. The lyzed the resistance spot weldability of 180-grade bake hardening steel and 7123-grade interstitial free steel and found that failure Materials Science & Engineering Aof high strength and high ductility as well as work hardening, which can all be benecial for industrial applications [1]. High strain hard-ening and strong bake hardening eects give these steels excellent potential for automotive applications such as in body side, reinforce-ment and engine cradle [24]. Furthermore, these great macroscopic

Micromechanical modeling of fatigue behavior of DP steels

High strain hard- Sherman and Davies [10] showed that work hardening, which is a ening and strong bake hardening eects give these steels excellent consequence of ow-induced changes in microstructure, has a large potential for automotive applications such as in body side, reinforce- inuence on the fatigue behavior of DP steels. Prediction and Experimental Validation of an Impact Energy Abstract Dynamic processes like machine hammer peening generate a smoothing of tool surfaces, an increase in hardness and residual compressive stresses in the surface layer. So far, it is not possible to determine the energy threshold needed to smooth a rough surface based on tool parameters and workpiece characteristics.

Steels - 1st Edition

Mar 26, 1992 · Purchase Steels - 1st Edition. Print Book & E-Book. ISBN 9780750610902, 9781483144764 The influence of temperatures and strain rates on the Abstract This study deals with the mechanical behavior of DP steel. A commercial dual phase steel (DP 800) was strained to 3.5% followed by annealing at 180°C for 30min to simulate the pressing of the plates and the paint-bake cycle involved in the manufacturing process of automobile body structures. The effect of temperature and strain rate on the mechanical behavior of this material was

The influence of temperatures and strain rates on the

precipitation hardening can contribute to the increase of the strength in this material. Bake-hardenable steels must contain a certain minimum amount of solute carbon. Dur-ing the heat-treatment at 180 C, interstitial C diffuses to the dislocations 10 produced during pre-straining, resulting in both a discontinuous yield point and strengthening. According to Using Contact-less Optical Systems to Characterize and Abstract There is evident huge progress in the contact-less systems for measuring deformation by means of the photogrammetry especially during last ten years. From the forming point of view is very important that in many cases photogrammetry can improve knowledge about material deformation behavior under plastic deformation. This paper deals with characterization and description quite special

Automotive Steels ScienceDirect

Bake hardening (BH) is widely used in the automotive industry for enhancement of components yield strength (YS), leading to the improvements in dent and crash resistance. The mechanisms involve interaction of carbon atoms with dislocations, planar defects and