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Showing 1 to 20 of 94 for “"Temper"”.
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The role of microstructure in the temper embrittlement of low alloy steels.
… of heat treatment on the susceptibility to temper embrittlement (Ductile-Brittle transition temperature and low energy fracture characteristics) of eleven experimental steels.These experimental alloys represented a range of compositions related to engineering steels and corresponded to a …
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Temper, Mounds, And Palisades: The Walford Site (22Su501) Of Sunflower County, Mississippi
The Walford site is a multicomponent site with Archaic, Woodland and Mississippian components located in the northern Yazoo Basin of Mississippi. The site has been recorded by several surveys, and was subjected to salvage excavations from 2003–2007. This excavation confirmed multiple components …
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Influence of temper condition on the nonlinear stress-strain behavior of boron-aluminum
The influence of temper condition on the tensile and compressive stress-strain behavior for six boron-aluminum laminates was investigated. In addition to monotonic tension and compression tests, tension-tension, compression-compression, and tension-compression tests were conducted to study the …
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Transfer of surface finish from roll to strip in the temper rolling of steel
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1983.
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Evaluation of Temper Embrittlement in 2.25 Cr- 1 Mo Weld Metals Utilizing X-Ray Diffraction.
Temper embrittlement in low alloy steel is a phenomenon of reversible embrittlement occurring when a susceptible alloy is held in or slowly cooled through a temperature range of 1100 - 650 °F (13). Characteristics of this type of embrittlement are a reduction in notch toughness, an increase in the …
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Unsortable Wares: A Petrographic Analysis of Addis Temper from the Fatherland Site (22AD501), Adams County, Mississippi
… until European contact, two different ceramic tempers (and presumably cultures) existed side-by-side. Areas in which grog or clay tempering occurs are considered part of the Plaquemine Culture. Areas in which shell tempering predominates are considered part of the Mississippian Culture. Ceramic …
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A comparison of temper characteristics between Virgin Anasazi black-on-gray bowl rim sherds and plain gray jar rim sherds from Yama-2 and Yama-3
… those vessel forms and each of the following temper characteristics: temper sorting; temper percentage; temper angularity; and temper size. Black-on-gray bowl rim sherds mostly contain quartz and olivine temper and plain gray jar rim sherds contain more mixed sand, sherd and quartz/feldspar …
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Microstructural analysis of aluminium alloy 2096 as a function of heat treatment.
… function of isothermal aging time at 160°C. Two tempers were analysed for this study: under-aged at 4 hours (UA4) and under-aged at 12 hours (UA12). Transmission electron microscopy (TEM) was used to document T1 (Al2CuLi) precipitation near to and on low and high angle misorientation grain …
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A study of the microstructural and mechanical properties of novel spring steels.
… by Pandrol from a SiMn alloy in the quenched and tempered condition. For many years low to medium carbon based spring steel has been manufactured via an oil quench temper route producing components with suitable mechanical and microstructural properties. The current problem facing the spring …
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Abnormal Grain Growth of AA2195 Friction Stir Weld Nugget during Solution Heat Treatment
… PWSHT due to nugget instability at elevated temperatures. The current investigation is conducted to understand AGG in AA2195 FSW nugget during PWSHT and to determine the effect of several factors like the effects of initial temper of the welded plate and the weld process parameters, the …
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Factors influencing Beall degermination of corn for dry milling
… procedure in scientific literature, 3-stage tempering, with those obtained from the most commonly commercially practiced procedure, 1-stage tempering. For certain conditions of temper duration and tail gate weight distance (tail gate loading), both procedures produced statistically similar …
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Parental Stress and Child Behavior Problems in Families of Children with Autism
… answer when people talk to him/her” and “temper tantrums or hot temper,” were significantly related to parental stress levels at intake and both of these behavior problems significantly predicted changes in parenting stress from pre to post intervention. Conclusions: Identifying the …
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Impact fracture of embrittled stainless steels
… embrittlement of austenitic stainless steels and temper embrittlement of a martensitic stainless steel have been studied by impact testing, metallography, and SEM fractography. New data for uncharged and hydrogen-charged specimens of Types 304L and 316L austenitic stainless steels show significant …
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Cross-Cultural Contact on Ship Island, Mississippi: An Analysis of the French Warehouse Site Ceramic Assemblage from an Aboriginal and Engendered Perspective
… and date(s) of site occupation by identifying temper agents and ceramic types and varieties. It also seeks to determine the nature of site use by analysis of vessel form and function. Two scenarios are explored. If the ceramic vessels are of homogeneous forms, then they are likely products of …
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Ancient engineering : selective ceramic processing in the Middle Balsas Region of Guerrero, Mexico
… In certain cases, such as the use of shell temper in North America, an improvement in thermal shock resistance seems to provide an explanation for why the new temper was adopted along with the introduction of a new food type -- maize. It remains an unanswered question, however, whether …
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Vaikų iš socialiai remtinų šeimų ankstyvoji adaptacija ikimokyklinio ugdymo įstaigose /
… of parental behavior, actions and temper. Certain groups of people feel unsafe in changed socio-economic conditions. They are difficult to adapt to the pace of modern life, to the socio-economic and political changes. Extremely high unemployment highlighted social problems of the …
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And Drops of Rain Fall Like Tears: A Composition for Electroacoustic Music and Video
… concert space, thereby recreating the powerful temper and subtle beauty of nature from different sonic perspectives. The paper is divided into four chapters, each discussing an element of the piece in detail. The introduction presents background information and compositional approach for the …
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Carbo-nitride precipitation and its effect on matrix transformations in high strength-high toughness 300M steel
The influences of different austenitisation temperatures on the matrix microstructure and mechanical properties (K1C and hardness) of one cast have been investigated. 300M steel has been austenitised at 925 °C for increasing holding times from 1h to 4h and 1025 °C for 2h holding time. …
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English gauged brickwork : historical development and future practices
… that historic rubbing bricks were fired at lower temperatures (7S0-900°C) than the modern rubbing bricks (-900°C). This has led to the bricks having very different physical properties, with the historic rubbing bricks, having significantly greater porosity and water absorption than the modern. …
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