David Loepp, Alexander Maass

Experimental Replication of a Granulated Gold Bead from an Ancient Tomb at Bat, Oman

Materials

During excavation of a tomb at Bat, Oman, an unusual gold bead entirely composed of 96 granules was discovered. The bead comes  from a...

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This paper presents a fascinating and rigorous experimental archaeometallurgical investigation into the manufacturing techniques of an exceptionally i...

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Andreas Hauptmann, Sabine Klein, Richard Zettler, Ursula Baumer, Patrick Dietemann

On the Making and Provenancing of Pigments from the Early Dynastic Royal Tombs of Ur, Mesopotamia

Materials

A total of 50 cosmetic pigments from the Royal Cemetery of the Sumerian city of Ur, Mesopotamia, now in the collections of the Penn  M...

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The study "On the Making and Provenancing of Pigments from the Early Dynastic Royal Tombs of Ur, Mesopotamia" presents a comprehensive archaeometric i...

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Sabine Klein, Susan La Niece, Andreas Hauptmann

Objects from the Ur collection of the British Museum Sampling and Analytical Investigations

Materials

In addition to the material from the Penn Museum, which was already accessible in generous volume, access was requested to The British Muse...

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This paper presents an important analytical investigation into a selection of metallic objects from the Ur collection housed at the British Museum. Bu...

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Jonathan Lentz, Arne Röttger, W. Theisen

Alloy design in the system Fe-C-B

Materials

In this study, the Fe-C-B system is used as a basis for alloy development of tool steels. Thereby,boron is used as hard phase forming eleme...

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This study presents a highly relevant and comprehensive investigation into alloy design for tool steels, specifically focusing on the novel applicatio...

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F. Pöhl, S. Schwarz, P. Junker, K. Hackl, W. Theisen

Indentation and scratch testing – experiment and simulation

Materials

Most modern wear resistant materials feature a multiphase microstructure and the macroscopicwear behavior is controlled by the local mechan...

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This paper presents a comprehensive investigation into the local mechanical characterization of multiphase wear-resistant materials through a combined...

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A. Mohr, A. Röttger, W. Theisen

Wear Resistant Materials Containing Recycled TiC

Materials

High mechanical loads, corrosion and abrasion decreases the life time of many tooling materialsused in the modern economy. One way to incre...

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S. Brust, A. Röttger, W. Theisen

New wear-resistant materials for mining applications

Materials

Economic and political driving forces are leading to an ambitious search for substitutes for fusedtungsten carbide (FTC) in ultra-high wear...

Review:

This paper addresses a timely and critical challenge in materials science: the development of novel wear-resistant materials to replace fused tungsten...

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M. Windmann, A. Röttger, W. Theisen

Wear mechanisms of coated steels during press hardening

Materials

In this work microstructure of Al-base coated press-hardening steel 22MnB5, austenitized at920°C, was analyzed with respect to the phase fo...

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W. Theisen

Abrasion resistant materials on Fe-base

Materials

Abrasion is one of the four main wear mechanisms that is determined in components being in contactwith mineral goods. Typical examples of u...

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The abstract provides a clear and concise introduction to the phenomenon of abrasion, positioning it as one of the primary wear mechanisms in componen...

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M. Woydt, H. Mohrbacher

The background for the use of hartmetals and MMCs based on Niobium Carbide (NbC) as cutting tools and for wear resistant tribosystems

Materials

In this present study, the mechanical properties (strength, hardness, moduli) and the drysliding properties of stoichiometric and sub-stoic...

Review:

This paper presents a compelling investigation into the potential of Niobium Carbide (NbC), both stoichiometric and sub-stoichiometric, as a foundatio...

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