1-20 of 437 Search Results for

line defects

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006644
EISBN: 978-1-62708-213-6
... surface. The wave vectors inside the crystal differ from that outside only by a vector normal to the crystal surface, that is, K → 0 − k → 0 = δ n → , where n → is a unit vector normal to the surface, and δ is a scalar variable. A line normal drawn from the tip of the...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006292
EISBN: 978-1-62708-163-4
... tabulates the assorted structure types of metallurgical interest arranged according to Pearson symbol. It also provides information on crystal defects in all real crystals, explaining some significant ones, such as point defects, line defects, stacking faults, and twins. atom position crystal defects...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005455
EISBN: 978-1-62708-196-2
... with solute atoms. Thus, when the interaction of strain fields results in a decrease in the overall amount of strain (e.g., when a large substitutional solute occupies a lattice site below the extra half-plane of atoms in an edge dislocation, i.e., where the strains are tensile in nature), the line...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003084
EISBN: 978-1-62708-199-3
.... This article provides a brief review of the terms and basic concepts associated with crystal structures. It also discusses some of the significant defects obstructing plastic flow in real crystals, namely point defects, line defects, stacking faults, twins, and cold work. Several tables in the article...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006008
EISBN: 978-1-62708-172-6
... Abstract Coatings, such as those applied to ships, must be resistant to abrasion, in the case of cargo hold coatings, and cyclic changes of chemicals and tank cleaning, in the case of tank linings. Failures and defects can manifest themselves at various times in the life of a coating. To...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005344
EISBN: 978-1-62708-187-0
... side and a hot spot on the other. The fracture surface (after intentionally fracturing through the defect) reveals a dark gray stained area ( Fig. 14b ) that was confirmed to be shrink porosity ( Fig. 14c ). Fig. 14 (a) Leaker at the parting line of a casting. (b) Exposed fracture surface reveals...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001280
EISBN: 978-1-62708-170-2
... also be obtained as frits. Frits are milled in porcelain-lined mills with water to which refractory oxides or other inert materials, clay, and setup agents are added to produce the required analysis. Changes from the recommended composition and specific gravity of a slip may produce undesirable...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006016
EISBN: 978-1-62708-172-6
... installation of the protective coating/lining system. Prior to beginning surface-preparation operations, many specifications will require a presurface-preparation inspection to verify the correction of fabrication defects and removal of surface contamination such as grease, oil, cutting compounds, lubricants...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001315
EISBN: 978-1-62708-170-2
.... The normal sequence of preparation steps prior to painting or electroplating of zinc alloy die castings includes: Mechanical finishing to smooth parting lines and rough or defective surfaces, plus buffing, if necessary Solvent degreasing or aqueous-based solution degreasing followed by rinsing...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006007
EISBN: 978-1-62708-172-6
... Abstract Functional fusion-bonded epoxy (FBE) coatings are used as external pipe coatings, base layer for three-layer pipe-coating systems, internal pipe linings, and corrosion coatings for concrete reinforcing steel (rebar). This article provides information on the chemistries of FBE, and...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006027
EISBN: 978-1-62708-172-6
... advantages and disadvantages, along with specific chemical and temperature resistances, and hardness and flexibility. Rubber lining systems are chosen for their resistance in the intended service and are applied, cured, and inspected for defects prior to placing the rubber-lined structure in service. A...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006457
EISBN: 978-1-62708-190-0
... resulting in no strength. These defects occur quite frequently ( Table 2 ). Porosity can also be caused by the inability of volatiles to escape from the joint, especially in large-area bond lines. Excessive moisture in the adhesive prior to curing can be prevented by controlling the humidity of the lay-up...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005461
EISBN: 978-1-62708-196-2
... combinations of die angle and reduction that cause central burst ( Fig. 8 ) for various m factors (0 < m < 1.0) representing friction along the die surfaces. For a given value of friction, internal cracking is predicted to occur for die angle and reduction combinations below the line, and no defects...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000601
EISBN: 978-1-62708-181-8
... Abstract This article is an atlas of fractographs that helps in understanding the causes and mechanisms of fracture of pure irons and in identifying and interpreting the morphology of fracture surfaces. The fractographs illustrate the grain-boundary cavitation; slip lines; intergranular...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... article discusses the common testing techniques and process variables for workability prediction. It illustrates the simple and most widely used fracture criterion proposed by Cockcroft and Latham and provides a workability analysis using the fracture limit line. The article describes various workability...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004014
EISBN: 978-1-62708-185-6
... the rolls during the forming process. The flow forming methods include staggered-roll flow forming process and in-line flow-forming process. Typical mechanical properties of flow-formed materials in various conditions are summarized in a table. Proper process controls and subsequent product...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009018
EISBN: 978-1-62708-187-0
... line reflection from the body of the casting. However, because the core cannot be vented at the top, trapped gases might cause defects in the casting metal. If this shape were to be cast in some metals, a second riser might be required at the top of the casting, in order to assure sound metal. Fig...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006046
EISBN: 978-1-62708-172-6
... in interior can coatings and tank linings as well as for heat exchanger tube coatings because of their high chemical and thermal resistance. The article concludes with a description of the concerns that a specifier, user, or applicator should be aware of regarding the use of phenolic coatings...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005308
EISBN: 978-1-62708-187-0
... processes such as die casting and permanent mold casting. The article reviews the pattern features and mold production considerations used in pattern design, namely, parting line considerations, addition of gates and risers, core prints, and locating points. It discusses the pattern allowances for ensuring...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006225
EISBN: 978-1-62708-163-4
... Abstract This article begins with a schematic illustration of a eutectic system in which the two components of the system have the same crystal structure. Eutectic systems form when alloying additions cause a lowering of the liquidus lines from both melting points of the pure elements. The...