Seminar: Aspects of Metallurgical Testing, June 21

WIXOM, MI - May 30, 2006

Questions about your metallurgical testing program or just starting one? Stork Climax Research Services will be hosting a technical seminar for all interested participants on Wednesday, June 21, 2006. Aspects of Metallurgical Testing will begin at 9 a.m. and run until approximately 12:00 noon at the Stork CRS laboratory, 51229 Century Court, Wixom, MI 48393-2074. (directions)

To register, please contact Beena Nath by email at beena.nath@stork.com or call 248-960-4900 Extension 338, or Kristen Lazzari at kristen.lazzari@stork.com (Extension 340).

Abstract:
If you conduct, manage, or coordinate metallurgical testing for your organization, Aspects of Metallurgical Testing will help you address issues that can delay your testing, obscure communications, or confuse you and your test lab. The course will also discuss various metals specifications and test methods, as well as common misconceptions about them. The table below outlines the 6 sections of the seminar and the questions we'll answer in each of them:

Seminar Section
Questions and Topics Covered

An introduction
to ASTM and SAE standards

What’s the difference between the various types of standards, i.e., test methods, specifications, practices, terminology and guides?

How are the standards developed?

Who decides how tests are performed?

How often are the test methods and other standards revised?

What are the strengths and weaknesses of SAE and ASTM specifications?

Aspects of hardness testing

What ASTM test methods apply?

Why are there different types of hardness testing?

Which scales do you use for which metals?

What are some of the subtle requirements and pitfalls of hardness testing?

What are proper conversions for common metal alloys?

How precise are these hardness conversions and what are their limitations?

How do you estimate mechanical properties based on hardness?

Aspects of
mechanical testing

Why are there numerous ASTM tensile test methods and how do they differ from each other and international test methods?

How do you obtain yield strength, modulus, and other properties from tensile tests?

Which test methods produce typical properties of yield strength, ultimate tensile strength and elongation?

How do the various methods of determining elongation differ? What are the limitations of common tensile tests in producing an accurate digital stress-strain curve at both low and high strains?

What is the physical significance of “n” and “r” values?

How and why do the various types of fatigue tests differ?What ASTM test methods apply?

Aspects of
impact testing

When is impact testing really needed versus simply using tensile ductility?

What are the different types of ASTM and ISO testing geometries?

How do you measure the various parameters from an impact test: energy, %shear, and lateral expansion?

What is transition temperature and what are the various approaches to determining it?

When is it appropriate to convert Charpy impact energies to fracture toughness and how do you do it?

What ASTM test methods apply?

Aspects of
quantitative metallography

Why is grain size important?

What is the difference between ferrite and prior austenite grain size?

What are the underlying assumptions that validate comparison grain size measurements and what is their variability?

What other methods are available when comparison grain size measurements are invalid?

What are the various ASTM, ISO, and JIS methods for determining steel cleanliness?

How are inclusions categorized and their contents determined quantitatively?

Aspects of microanalysis

What are the differences between elemental and molecular microanalysis techniques?

What materials can they identify qualitatively?

What elements can EDS determine quantitatively and what other techniques can be used for light element quantification?

The course will be taught by Dr. John M. Tartaglia, Senior Metallurgical Engineer and Engineering Manager at Stork CRS. Stork CRS has provided testing, consulting and failure analysis services for 18 years, and Dr. Tartaglia has been performing failure analyses and materials characterization for more than 25 years. Dr. Tartaglia holds B.S. and Ph.D. degrees in Materials Engineering from Rensselaer Polytechnic Institute in Troy, New York, and is an expert in wrought steels, aluminum, magnesium, fatigue, failure analysis, scanning and transmission electron microscopy, and energy dispersive spectroscopy. Dr. Tartaglia currently chairs the Detroit chapter of ASM International and is a member of the ASTM metallography, mechanical testing, and fatigue committees. He is an experienced expert witness in failure analysis litigation and has given numerous seminars and training classes on metals testing and analyses.

Seminar Section	Questions and Topics Covered
An introduction to ASTM and SAE standards	What’s the difference between the various types of standards, i.e., test methods, specifications, practices, terminology and guides? How are the standards developed? Who decides how tests are performed? How often are the test methods and other standards revised? What are the strengths and weaknesses of SAE and ASTM specifications?
Aspects of hardness testing	What ASTM test methods apply? Why are there different types of hardness testing? Which scales do you use for which metals? What are some of the subtle requirements and pitfalls of hardness testing? What are proper conversions for common metal alloys? How precise are these hardness conversions and what are their limitations? How do you estimate mechanical properties based on hardness?
Aspects of mechanical testing	Why are there numerous ASTM tensile test methods and how do they differ from each other and international test methods? How do you obtain yield strength, modulus, and other properties from tensile tests? Which test methods produce typical properties of yield strength, ultimate tensile strength and elongation? How do the various methods of determining elongation differ? What are the limitations of common tensile tests in producing an accurate digital stress-strain curve at both low and high strains? What is the physical significance of “n” and “r” values? How and why do the various types of fatigue tests differ?What ASTM test methods apply?
Aspects of impact testing	When is impact testing really needed versus simply using tensile ductility? What are the different types of ASTM and ISO testing geometries? How do you measure the various parameters from an impact test: energy, %shear, and lateral expansion? What is transition temperature and what are the various approaches to determining it? When is it appropriate to convert Charpy impact energies to fracture toughness and how do you do it? What ASTM test methods apply?
Aspects of quantitative metallography	Why is grain size important? What is the difference between ferrite and prior austenite grain size? What are the underlying assumptions that validate comparison grain size measurements and what is their variability? What other methods are available when comparison grain size measurements are invalid? What are the various ASTM, ISO, and JIS methods for determining steel cleanliness? How are inclusions categorized and their contents determined quantitatively?
Aspects of microanalysis	What are the differences between elemental and molecular microanalysis techniques? What materials can they identify qualitatively? What elements can EDS determine quantitatively and what other techniques can be used for light element quantification?