1-20 of 175 Search Results for

induced plastic zone size

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: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004018
EISBN: 978-1-62708-185-6
... of R.C. Glenn Fig. 26 Curly lamellar structure in transverse section of a pearlitic steel wire drawn to a true strain of 3.2. Thin-foil electron micrograph. Original magnification 20,000× Orange peel, or surface roughening on the scale of the grain size, is produced by plastic...
Book Chapter

By H.W. Sizek
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003984
EISBN: 978-1-62708-185-6
... the propensity for surface cracking, and prevents internal defects from opening and growing. Radial forging was first conceived in Austria in 1946, and the first four-hammer machine was built in the 1960s. Today there are hundreds of machines worldwide in a number of different sizes and...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003021
EISBN: 978-1-62708-200-6
... stress. Suggested boss designs are shown in Fig. 7 . Some average pullout force and stripping-torque values of screws tested in polycarbonate (PC), for example, are shown in Table 1 . Table 1 Performance data for self-threading screws in polycarbonate Screw size type Hole diameter Driving...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001232
EISBN: 978-1-62708-170-2
... finish, closer tolerances, more localized control, and generation of more intricate surface features. Cutting tools with defined cutting edges are less feasible and less practical if small chip sizes are desired. An effective way of delivering small cutting edges to the machining zone is to use abrasive...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003015
EISBN: 978-1-62708-200-6
... typical four-screw extruder is a two-stage machine in which a twin-screw plasticating section feeds into a twin-screw discharge section below it. The multiple screws are generally sized on output rates rather than on length-diameter ratios or barrel diameters. The...
Series: ASM Handbook
Volume: 4E
Publisher: ASM International
Published: 01 June 2016
DOI: 10.31399/asm.hb.v04e.a0006252
EISBN: 978-1-62708-169-6
... malleable state into very strong, structurally useful engineering materials. The strengthening mechanism of precipitation hardening gave industry a strong, stiff, low-density material that was easily formable into many different shapes and sizes. Aviation was the driving force for the development of these...
Book Chapter

By Ted Kostilnik
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001235
EISBN: 978-1-62708-170-2
... variables, applications, and limitations of shot peening and provides information on peening action, surface coverage, and peening intensity. It discusses the equipment used for shot recycling and shot propelling as well as the types and sizes of media used for peening. The article describes the problems in...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003171
EISBN: 978-1-62708-199-3
... appear at, or close to, the mold wall. For a short time, they increase in size and form the outer equiaxed zone . Then, those crystals (dendrites) that can grow parallel and opposite to the heat flow direction will advance most rapidly. Other orientations tend to be overgrown, due to mutual competition...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
... method of assessing T g of composite materials by modulus measurement is used in the aerospace industry. A number of specimens of a size suitable for measuring flexural modulus are placed in a humidity chamber until they reach saturation. Then the flexural modulus is determined for individual...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005403
EISBN: 978-1-62708-196-2
... dynamic recrystallization (DDRX). The article discusses the assumptions and simplifications for the Avrami analysis. It describes the effects of nucleation and growth rates on recrystallization kinetics and recrystallized grain size based on the Johnson-Mehl-Avrami-Kolmogorov model for static...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004016
EISBN: 978-1-62708-185-6
... cross loading into three perpendicular directions resulting in structure refinement to a submicrometer, sometimes nanoscale, size. In contrast, rolling and drawing up to high reductions with predominant pure shear deformation mode and monotonic loading have been associated with formation of cells...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004019
EISBN: 978-1-62708-185-6
... the limiting effect of the sheet specimen thickness. Fig. 23 Normal grain growth in zone-refined iron during isothermal anneals. Closed circles represent specimens for which statistical analysis of grain-size and grain-shape distributions was conducted. One of the structural...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006660
EISBN: 978-1-62708-213-6
.... In a typical polycrystalline material with grain size between 2 and 200 μm, EBSD can map a large number of grains over a range of length scales spanning nanometers to centimeters. Not only is the average texture of the material available directly, but local information is also available, such as...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003225
EISBN: 978-1-62708-199-3
...) Load exceeded the dynamic strength of the part Check for proper alloy and processing, as well as proper toughness, grain size Loading direction can show failure was secondary or impact induced Low temperatures Cyclic stress exceeded the endurance limit of the material Check for...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005936
EISBN: 978-1-62708-166-5
... is typical in case hardening and nitriding. Mutual achievement of the desired component properties is inevitably connected to size and shape changes, as defined by Wyss in Ref 1 and also discussed in the article “Basics of Distortion and stress generation during Heat Treatment” in this volume...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003104
EISBN: 978-1-62708-199-3
... wear debris was mainly oxide, but at higher loads, the debris particles were metal flakes approximately five times larger than the oxide debris particles. Lowest wear rates in both regimes were found for ASTM type A flake graphite of size 3 to 4, randomly distributed in a pearlite matrix. Similar...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
... limiting factors that influence the choices should be analyzed. For example, if the ceramic material being formed reacts with water, then the choice of water-soluble binder is probably not wise. If the average particle size of the ceramic filler is very coarse, the use of plasticating extrusion equipment...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005676
EISBN: 978-1-62708-198-6
... multiple commercial sources Amorphous polymers are generally transparent while semicrystalline polymers are usually translucent or opaque. Crystals tend to scatter light, particularly if their size or the distance between crystals is on the order of the wavelength of visible light. Thus, amorphous...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003009
EISBN: 978-1-62708-200-6
... provide stain resistance. Fluoropolymers can be formed into a wide variety of shapes and sizes, from solid to hollow parts, from wire to sheets or coatings. If formed into a sheet or wire, PTFE can be fairly flexible. Its tensile strength ranges from 25 to 30 MPa (3.5 to 4.5 ksi), and its flexural...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003010
EISBN: 978-1-62708-200-6
... size and geometry, runner and gate size and type, and the specific grade of material chosen. Pressures should be chosen to attain a fill time of between 3 and 10 s. Mold surfaces should be well polished, hardened, and chrome plated. Designs should avoid sharp corners whenever possible and include a...