Analysis of Rotor Steels for Residual Elements

2009 ◽  
pp. 237-237-14
Keyword(s):  
Residual Elements

Analytical Electron Microscopy Characterization of Electric Arc Furnace Dust

1981 ◽  
Vol 39 ◽  
pp. 134-135
Author(s):  
J. R. Porter ◽  
J. I. Goldstein ◽  
D. B. Williams
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Dust Particles ◽  
Particle Analysis ◽  
Arc Furnace ◽  
Analytical Electron ◽  
Residual Elements ◽  
Industry Practice

Alloy scrap metal is increasingly being used in electric arc furnace (EAF) steelmaking and the alloying elements are also found in the resulting dust. A comprehensive characterization program of EAF dust has been undertaken in collaboration with the steel industry and AISI. Samples have been collected from the furnaces of 28 steel companies representing the broad spectrum of industry practice. The program aims to develop an understanding of the mechanisms of formation so that procedures to recover residual elements or recycle the dust can be established. The multi-phase, multi-component dust particles are amenable to individual particle analysis using modern analytical electron microscopy (AEM) methods.Particles are ultrasonically dispersed and subsequently supported on carbon coated formvar films on berylium grids for microscopy. The specimens require careful treatment to prevent agglomeration during preparation which occurs as a result of the combined effects of the fine particle size and particle magnetism. A number of approaches to inhibit agglomeration are currently being evaluated including dispersal in easily sublimable organic solids and size fractioning by centrifugation.

HP MAGNET PLATE STEEL

Alloy Digest ◽  
2004 ◽  
Vol 53 (11) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
Magnetic Permeability ◽  
Nonmetallic Inclusions ◽  
Heat Treating ◽  
Plate Steel ◽  
High Saturation ◽  
Careful Control ◽  
Residual Elements ◽  
High Magnetic Permeability

Abstract HP magnet steel is designed for use wherever high magnetic permeability or high saturation values are required. Its magnetic qualities result from careful control of sulfur and residual elements plus the special deoxidization practice, which minimizes nonmetallic inclusions. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on forming, heat treating, machining, and joining. Filing Code: CS-144. Producer or source: ISG Plate International Steel Group Inc.

The effect of trace elements (Cu and Sn) on mechanical properties of steel castings

1980 ◽  
Vol 295 (1413) ◽  
pp. 125-125
Keyword(s):  
Mechanical Properties ◽  
Trace Elements ◽  
Regression Analysis ◽  
Experimental Work ◽  
High Strength Steel ◽  
Mechanical Performance ◽  
High Strength ◽  
Residual Elements ◽  
Steel Castings ◽  
Effect Of Copper

Because of the increase in the levels of residual elements in steel, a programme of work was initiated to determine the limits of copper and tin impurities that were tolerable in steel castings. A 1.5 % Mn—Mo steel was chosen as a base, since any effect of trace elements would be readily apparent in terms of mechanical performance in this medium—high strength steel. The effect of copper was investigated within the range < 0.01-0.5 %, and tin within the range < 0.01-0.26%. The results were analysed by using factorial analysis in the first instance and later, as the amount of experimental work expanded and more results became available, a regression analysis was used.

scholarly journals The Crown's Relationship with Tribal Peoples and the Legal Dynamics for the Resolution of Historical and Contemporary Claims

2015 ◽  
Vol 46 (3) ◽  
pp. 875
Author(s):  
PG McHugh
Keyword(s):  
New Zealand ◽  
Coastal Area ◽  
Indigenous Rights ◽  
The Past ◽  
Residual Elements

This article reflects upon themes and foundations of the contemporary legalism attending the resolution of aboriginal claims. It opens with a broad description of the historical foundation of that legalism in the imperial prerogative of the Crown and its continuance in the national constitutional systems of Canada and New Zealand. It then considers how that legalism, with its origination in the imperial prerogative and the ongoing comparative dimension associated with that origin, inhabits a recent local example, namely New Zealand’s Marine and Coastal Area (Takutai Moana) Act 2011. The article shows how this provision reflects the general features of indigenous rights' jurisprudence as it has emerged over the past 30 years: it carries residual elements of the imperial prerogative and it has a comparative element, yet it is also a peculiarly New Zealand instance that marks a new step in the jurisprudence.

scholarly journals Subsequent Marking under Ultrasound Guidance of Vacuum-Assisted Breast Biopsy Areas after Receipt of Histology: A Feasibility Study of a New Technique

Breast Care ◽  
2020 ◽  
Vol 15 (6) ◽  
pp. 628-634
Author(s):  
Clara Park ◽  
Frauke Chevalier ◽  
Volker Möbus ◽  
Petra Hoedl ◽  
Kerstin Engelmann ◽  
...  
Keyword(s):  
Breast Biopsy ◽  
Standard Procedure ◽  
Cost Effective ◽  
Target Lesion ◽  
Us Guidance ◽  
Institutional Ethics ◽  
Biopsy Site ◽  
Residual Elements ◽  
The Mean ◽  
Mean Time

<b><i>Purpose:</i></b> The aim of this study was to evaluate the feasibility and the accuracy of a secondary, metachronous ultrasound (US)-guided marking of the stereotactic vacuum-assisted breast biopsy (ST-VABB) area. <b><i>Materials and Methods:</i></b> The institutional ethics committee approved the study. The retrospective study included 98 patients. In ST-VABB of 45 women, no tissue markers were deployed at the biopsy site, even if no residual calcifications remained. After histology proved the necessity for a subsequent operation, the biopsy site was marked under US guidance using a coil marker. All interventions were technically successful. No complications occurred. Mammography was done to visualize the coil deployment. The distances from the center of the lesion and the biopsy cavity to the coil location were measured in both planes to evaluate the accuracy of the marking procedure. <b><i>Results:</i></b> In 24 of the 46 cases, the whole lesion was biopsied without residual elements. The mean time between ST-VABB and sonographic marking of the lesion was 9.7 days (median 6.5). The biopsy cavity could be detected in 40 (87%) cases and thus marked exactly. The mean time of US-guided marking was 12.5 min. The mean distance between the coil and the target lesion was 0.6 ± 1.5 cm in the craniocaudal (cc) view and 0.5 ± 1.5 cm in the mediolateral (ml) view for all markings. The mean delta value from the distance nipple–original lesion and from the distance nipple–coil was 0.85 ± 1.2 cm (median 0.5) in the cc view and 0.88 ± 1.2 cm (median 0.6) in the ml view for all cases. Clip migration was not observed. <b><i>Conclusion:</i></b> Our study demonstrates the feasibility and the technical success of secondary metachronous coil marking of the biopsy site under US guidance after receipt of histology. This approach seems to be a cost-effective alternative to the standard procedure of the primary coil marking especially in all completely removed lesions. It may offer advantages for allergic patients.

Effect of alloying and residual elements on strength and hot ductility of cast cupro-nickel

JOM ◽  
1978 ◽  
Vol 30 (3) ◽  
pp. 20-25 ◽  
Author(s):  
J. P. Chubb ◽  
J. Billingham ◽  
P. Hancock ◽  
C. Dimbylow ◽  
G. Newcombe
Keyword(s):  
Hot Ductility ◽  
Residual Elements ◽  
Effect Of Alloying

Defending probation: Beyond privatisation and security

2014 ◽  
Vol 6 (1) ◽  
pp. 24-41 ◽  
Author(s):  
Wendy Fitzgibbon ◽  
John Lea
Keyword(s):  
Third Sector ◽  
Management Approach ◽  
Current Debate ◽  
Industrial Complex ◽  
Political Strategy ◽  
False Dichotomy ◽  
Third Sector Organisations ◽  
Residual Elements ◽  
Set Up ◽  
The Uk

The current debate about the privatisation of probation in the UK has tended to set up a false dichotomy between state and private that diverts attention from the fact that privatisation as part of a ‘rehabilitation revolution’ intends, in fact, to continue the domination of the risk management approach. What is emerging is a public–private combination of increasingly centralised public sector probation and the private ‘security-industrial complex’ of global security corporations. An important consequence of this process is the annihilation of both residual elements of voluntary sector and community work within probation itself and of the smaller private charities and third sector organisations that have long collaborated with probation in traditional desistance work. This complex dynamic is a reflection of some of the key internal inconsistencies of neoliberalism as a political strategy.

Contributions of Selected Residual Elements to the Radiation Embrittlement Sensitivity of Steel Forgings

1973 ◽  
Vol 1 (5) ◽  
pp. 439
Author(s):  
ST Etris ◽  
KC Lieb ◽  
VK Sisca ◽  
IC Moore ◽  
AL Batik ◽  
...  
Keyword(s):  
Radiation Embrittlement ◽  
Residual Elements
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