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Home » Authors » C.J. Van Tyne

C.J. Van Tyne

Chester J. Van Tyne is FIERF Professor, Department of Metallurgical Engineering, Colorado School of Mines, Golden, Colo. He may be reached at 303-273-3793 or cvantyne@mines.edu.

Articles

ARTICLES

1219FORGE-SciForming-slide1

Optimized Cooling Rates of Microalloyed Steels (Part I)

James Miller John Walters C.J. Van Tyne
December 11, 2019
No Comments

This article covers the vexing problem of properly cooling forged microalloyed steels. This first of two parts will discuss the technical and business benefits of forged microalloyed steels.


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Grain Flow in Forgings VI

Grain Flow in Forgings VI – Preforms and Open-Die Forging

John Walters C.J. Van Tyne
December 4, 2015
No Comments

Grain flow is the orientation of grains and inclusions/particles within the metal caused by plastic deformation.


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Grain Flow in Forgings collage

Grain Flow in Forgings V – Modifying Grain Flow and Use of Simulation

John Walters C.J. Van Tyne
August 11, 2015
No Comments

In order to achieve the benefits that grain flow can impart to a forged component, there is a need to understand the end service of the component to produce a forging with the grain flow of the required orientation in the critical region(s) of the component.


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Grain flow in forgings

Grain Flow in Forgings IV – Various Processes and Influence of Machining

John Walters C.J. Van Tyne
April 6, 2015
2 Comments

The focus in the first three parts of this series was on the basics of grain flow and their effects on mechanical properties. In this fourth installment, the typical grain flow for various manufacturing processes will be reviewed.


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Grain Flow in Forgings III feature image

Grain Flow in Forgings III – Effects of Forging on Grain Flow

John Walters C.J. Van Tyne
February 4, 2015
One Comment

In the first two parts of this series, we examined the basic definition of grain flow and described the anisotropic properties in metals because of it.


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FG1214 Grain Flow feature

Grain Flow in Forgings II – How Forging Changes Grain Flow

John Walters C.J. Van Tyne
December 8, 2014
No Comments

The mechanical properties of a metal with grain flow are anisotropic.


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fg1014-grain-lead-422.jpg

Grain Flow in Forgings - The Basics

John Walters C.J. Van Tyne
October 6, 2014
4 Comments

In this series, we will examine the concepts and features of forging grain flow. This article will cover the basics of grain flow that occur during metalworking processes. 


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Forging Materials: Plain-Carbon and Low-Alloy Steels

C.J. Van Tyne John Walters
December 1, 2013
3 Comments

Since steels are so widely used, two articles will be devoted to this class of materials. This article will discuss the chemistry, typical applications and some operational forging issues.


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Forging Materials: Copper Alloys

Forging Materials: Copper Alloys

John Walters C.J. Van Tyne
April 1, 2013
No Comments
Our series on forging materials concludes with an examination of copper alloys.
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Superalloys

Forging Materials: Superalloys

John Walters C.J. Van Tyne
December 19, 2012
No Comments
We continue our series on nonferrous forging metals with this article, which discusses superalloys used in forged components.


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