Room and high temperature wear behaviors of nickel and cobalt base weld overlay coatings on hot forging dies

Kashani, Hamzeh; Amadeh, A.; Ghasemi, H.M.

doi:10.1016/j.wear.2006.08.028

Cited by 142 publications

(71 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The eutectic regions consist of carbides and a phases. [14] The Stellite 6 coating microstructure consists of a matrix containing tungsten and chromium carbides at the grain boundaries. [6] Figure 7(c) revealed the characteristic and uniformly distributed hard phases throughout the coating regions of Colmonoy 88.…”

Section: Resultsmentioning

confidence: 99%

Slurry Erosion Characteristics and Erosive Wear Mechanisms of Co-Based and Ni-Based Coatings Formed by Laser Surface Alloying

Shivamurthy

Kamaraj

Nagarajan³

et al. 2009

Metall Mater Trans A

View full text Add to dashboard Cite

In the present work, an attempt has been made to study the slurry erosion properties and operating erosive wear mechanisms of Co-based Stellite 6 and Ni-based Colmonoy 88 coatings, and also to list the conditions at which maximum and minimum erosion rates occur. Laser surface alloying (LSA) has been done on 13Cr-4Ni steels with commercial Co-based Stellite 6 and Ni-based Colmonoy 88 powders. Slurry erosion tests have been conducted on LSAmodified steels for a constant slurry velocity of 12 m/s and for a fixed slurry concentration of 10 kg/m 3 of irregular, sharp-edged SiO 2 particles with average sizes of 375 and 100 lm and at impingement angles of 30, 45, 60, and 90 deg. A mixed (neither ductile nor brittle) mode of erosion behavior for Stellite 6 coatings and a brittle mode of erosion behavior for Colmonoy 88 coatings were observed when these materials were impacted with particles with an average size of 375 lm, whereas only a brittle mode of erosion was observed for both Stellite 6 and Colmonoy 88 coatings when impacted with particles with an average size of 100 lm. Mainly, chip formation, chip fracture, microcutting, plowing, and crater lip and platelet formation were observed for Stellite 6 coatings and progressive fracture of carbides, carbide pullout and carbide/boride intact were observed for the case of Colmonoy 88 coatings.

show abstract

Section: Resultsmentioning

confidence: 99%

Slurry Erosion Characteristics and Erosive Wear Mechanisms of Co-Based and Ni-Based Coatings Formed by Laser Surface Alloying

Shivamurthy

Kamaraj

Nagarajan³

et al. 2009

Metall Mater Trans A

View full text Add to dashboard Cite

show abstract

“…The workflow for maintenance of dies comprise the following steps: In case of cladding using Stellite, it is important to know the hardness at 500°C and not at room temperature [7]. Depending on the W-content, several types are available.…”

Section: Typical Repair Methods Applied To Worn Forging Diesmentioning

confidence: 99%

Damage, Lifetime, and Repair of Forging Dies

Buchmayr

2016

Berg Huettenmaenn Monatsh

View full text Add to dashboard Cite

Abstract:The life time of forging dies is essential for economic production. The forging conditions and the characteristic tool damage vary from part to part, which makes a life time prediction very difficult. By means of three case studies, it is shown that the knowledge of the dominant damage mechanism is the key to finding out proper counter-measures or repair technologies. Best practice processing and repair technologies are discussed in this paper. Common tool materials are listed and assigned to their proper usage. Plasma-nitriding without white layer is proposed to be a good economic and technical compromise, when compared to other surface technologies. Finally, the potential of automatic tooling for die repair is pointed out.

show abstract

“…In general, the surface hardness of the die decreases when the temperature of the die is increased during repeated operation which results in thermal softening during the hot forging process. The thermal softening accelerates the wear, thermal cracking, fatigue and the plastic deformation of the die [4]. Therefore, elevated temperature properties of die materials are a very important factor.…”

Section: Introductionmentioning

confidence: 99%

“…Researchers have focused on the microstructural morphologies and wear resistance of hardfaced surfaces [11][12][13][14][15]. A few studies cover industrial results [1,4,8]. This paper includes laboratory experiments, numerical analysis and field tests on hardfacing materials.…”

Section: Introductionmentioning

confidence: 99%

Performance of Fe-based hardfacings on hot forging die: experimental, numerical and industrial studies

Saklakoğlu¹,

İrizalp²,

Doğan³

et al. 2018

View full text Add to dashboard Cite

This paper is an investigation into the use of Fe-based alloys as part of wear resistant hardfacing materials in AISI 1.2714 tool steel. Four different weld hardfacing alloys were deposited on 1.2714 steel substrates using tungsten inert gas welding (TIG) process. Wear tests were carried out using a pin-on-disc wear tester at room temperature. Microhardness and micrographs of the weld overlays were obtained. High-temperature properties were estimated by numerical analysis. The phases of the hardfacings were obtained by XRD and also estimated by numerical analysis. The results from the laboratory tests were then compared with the results obtained from field studies. The results showed that some Fe-based alloys improved dies lifetime; others created poor surfaces. A Fe-based hardfacing alloy D which included high C with Cr, W, Mo had the best wear behavior among the weld overlays.K e y w o r d s : hardfacing, Fe-based alloy, JmatPro, die failure mode, hot forging performance tests

show abstract

Room and high temperature wear behaviors of nickel and cobalt base weld overlay coatings on hot forging dies

Cited by 142 publications

References 16 publications

Slurry Erosion Characteristics and Erosive Wear Mechanisms of Co-Based and Ni-Based Coatings Formed by Laser Surface Alloying

Slurry Erosion Characteristics and Erosive Wear Mechanisms of Co-Based and Ni-Based Coatings Formed by Laser Surface Alloying

Damage, Lifetime, and Repair of Forging Dies

Performance of Fe-based hardfacings on hot forging die: experimental, numerical and industrial studies

Contact Info

Product

Resources

About