Open Access. Powered by Scholars. Published by Universities.®
Other Materials Science and Engineering Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Publication Year
- Publication
- Publication Type
Articles 1 - 28 of 28
Full-Text Articles in Other Materials Science and Engineering
Characterization Of Hydrogen Embrittlement Sensitivity In High Hardness Steels, David Ahlen Salley
Characterization Of Hydrogen Embrittlement Sensitivity In High Hardness Steels, David Ahlen Salley
Theses and Dissertations
High hardness steels can be affected by delayed brittle cracking often attributed to hydrogen embrittlement. Improved resistance to hydrogen embrittlement would be beneficial to many industries including military, automotive, and high-rise construction. While other prevention methods include coating, trapping, and barriers, design efforts in this study were focused on improving intrinsic properties to be more resistant to hydrogen embrittlement. Four alloys targeting 477 – 534 HB were designed and produced in-house and compared against a commercial grade 500 HB alloy. Charpy V-notch (CVN) impact toughness and tensile specimens were made according to ASTM E23 and ASTM E8 to characterize mechanical …
Pulse Reverse Current Electrodeposited Tio2 Doped Ni-W Coating, Sydney Hughes
Pulse Reverse Current Electrodeposited Tio2 Doped Ni-W Coating, Sydney Hughes
Williams Honors College, Honors Research Projects
Nickel-Tungsten (Ni-W) coatings via the pulse reverse current method have been under development as a potential replacement for typical Chromium/Cadmium coatings. To increase the effectiveness of Ni-W as a coating, dopants have been tested to decrease microcracks and pores and increase overall tribological performance. Previous research by Timken Engineered Surfaces Laboratory showed that Ni-W doped with TiO2 nanoparticles had a positive effect on coating performance. The purpose of this study was to determine the ideal solution parameters (i.e. TiO2 concentration, pH) to maximize the benefit of the dopant when samples are subjected to tribological testing. Here, solutions of …
Optimization Of The Practice Of Slow Cooling Steel Bars: A Redesign And Modernization Of Materials, Eryn Johnston
Optimization Of The Practice Of Slow Cooling Steel Bars: A Redesign And Modernization Of Materials, Eryn Johnston
Mechanical Engineering Undergraduate Honors Theses
Throughout the process of steel making, certain grades of steel are a higher risk for defects caused by the inability to quickly diffuse hydrogen through the steel when cooled to room temperature at a normal rate based on the ambient air temperature. To reduce the hydrogen flaking defects that are caused due to hydrogen entrapment in the steel, the process of slow cooling is utilized. This process reduces the cooling rate of steel bars by keeping them at a higher temperature for extended periods and in turn gives the hydrogen a chance to fully dissipate from the steel. In many …
The Examination Of Stress Corrosion Cracking In High Strength Carbon Steel Through Combined Mechanical-Electrochemical Testing, Jacob Sines
Williams Honors College, Honors Research Projects
Through the analysis of materials and environments seen in industry a better understanding of the fundamentals behind degradation mechanisms can be observed. The scope of this project was to better understand the fundamentals behind the degradation of high strength pipeline steels in a lab setting to simulate an environment seen in industry. Specifically the degradation mechanisms of high and nearly neutral pH stress corrosion cracking were examined in environments that simulated oil and gas pipelines buried in soil. Experimentation was carried out utilizing X65 carbon steel specimen, a Gamry potentiostat, a CORTEST proof ring, a CORTEST slow strain rate machine, …
Cryogenic Technique For Processing Steel Treatment, Ajit Behera
Cryogenic Technique For Processing Steel Treatment, Ajit Behera
Ajit Behera
Cryogenics or deep freezing have been around for quite some time. There is documented research from as far back as the 1930’s where German companies used it on components of jumbo aircraft engines. Cryogenic processing had its US origins in the 1940s. Cold treatments or sub zero treatments are done to make sure there is no retained austenite during quenching. Cryogenics is a relatively new process and to eliminate retained austenite, the temperature has to be lowered, but one that using correct procedures can bring substantial economic benefits. In cryogenic treatment the material is to be deep freeze temperatures of …
Investigation Of Inclusions In Armco Ingot Iron, Edwin J. Duncan
Investigation Of Inclusions In Armco Ingot Iron, Edwin J. Duncan
Bachelors Theses and Reports, 1928 - 1970
Various chemical and electrolytic separation methods were investigated in an attempt to separate the inclusions in Armco ingot iron. Residues obtained were X-rayed for identification purposes. The microstructures of this iron were studied with the object of determining the relative sizes, locations, and possible compositions of the inclusions.
Studies Of Tempering Behavior Of Steel X-9165 Of N-A-X 9100 Series, James A. Ndulue
Studies Of Tempering Behavior Of Steel X-9165 Of N-A-X 9100 Series, James A. Ndulue
Bachelors Theses and Reports, 1928 - 1970
One of the reasons why steel is the most versatile of all the metals available for engineering applications is because of the wide range of properties that can be obtained from it by proper heat treatment.
Electroplating Of Chromium, Nickel And Copper Upon Titanium, Stanley O. Fong
Electroplating Of Chromium, Nickel And Copper Upon Titanium, Stanley O. Fong
Bachelors Theses and Reports, 1928 - 1970
Recently, there has been a great amount of research work done on the metal titanium. Since it is a light weight metal, with unusual strength and good resistance to corrosion, it may be a possible substitute for aluminum and magnesium alloys, or steel.
The Influence Of Copper Upon The Age Hardening Properties Of Steel, Andre Rey
The Influence Of Copper Upon The Age Hardening Properties Of Steel, Andre Rey
Bachelors Theses and Reports, 1928 - 1970
The virtues of alloy steels have been widely publicized in both technical literature and everyday advertising. Nearly everyone possessing a slight knowledge of metallurgy knows the beneficial effects of chromium in the manufacture of stainless steels, or the importance of nickel, molybdenum, vanadium, and other common elements used to alloy steels.
Benefication Of A Tungsten Ore, James Alexander Shaffer Jr.
Benefication Of A Tungsten Ore, James Alexander Shaffer Jr.
Bachelors Theses and Reports, 1928 - 1970
Tungsten is a metal of high strategic value in the defense effort. It is used chiefly to improve creep strength in steels, although a significant percentage enters into the manufacture of cemented carbide tool bits. Therefore, in this age of mechanized warfare, quality and quantity of defense production depend greatly on tungsten.
The Electrolytic Polishing Of Steel In Solutions Of Sulphuric And Phosphoric Acids, Joseph W. Tripp
The Electrolytic Polishing Of Steel In Solutions Of Sulphuric And Phosphoric Acids, Joseph W. Tripp
Bachelors Theses and Reports, 1928 - 1970
The process of cleaning and pickling the surfaces of steel objects by electrolytic methods has been known and applied since about 1920; the fact that under certain conditions these surfaces acquired a brilliant luster was noted as early as 1928.
An Isothermal Study Of An S.A.E. 6150 Steel, Tom Liss, C. Arentzen
An Isothermal Study Of An S.A.E. 6150 Steel, Tom Liss, C. Arentzen
Bachelors Theses and Reports, 1928 - 1970
The purpose of this thesis is to set forth the method followed, the laboratory procedure practiced, the results obtained, the conclusions drawn, and the recommendations proposed as a consequence of a metallographic study of the isothermal transformation of an S.A.E. 6150 steel.
An Investigation Of Silicon Impregnation Of Low-Carbon Steels, Thomas E. Groce
An Investigation Of Silicon Impregnation Of Low-Carbon Steels, Thomas E. Groce
Bachelors Theses and Reports, 1928 - 1970
A problem of metallurgy during the last part of the Nineteenth and the early Twentieth Century, and one that stood very near the front, was investigations of methods to produce a non-corrosive surface on iron and steel without affecting the physical properties of these base metals.
Aluminum - Bronze Compacts And Their Possible Use As A Bearing Material, Donald J. Mcmaster
Aluminum - Bronze Compacts And Their Possible Use As A Bearing Material, Donald J. Mcmaster
Bachelors Theses and Reports, 1928 - 1970
In the modern aspect of powder metallurgy, the first use of a sintering process was in making filaments for incandescent electric lamps.In the short while from the day of Edison to the present, the science of working with metal powders has advanced by leaps and bounds.
Leaching Of Low Grade Rhodochrosite, E. D. King
Leaching Of Low Grade Rhodochrosite, E. D. King
Bachelors Theses and Reports, 1928 - 1970
Although there are many uses for manganese today, none of them approaches its importance as a deoxidizing agent in the manufacture of steels. Without manganese the steelmaking industry would be very seriously handicapped. The metallurgy of manganese has been developed around the high-grade ores, and unfortunately, our reserves of high-grade ores are very limited.
An Investigation Of A Particular Weldment Failure, Byron Clow
An Investigation Of A Particular Weldment Failure, Byron Clow
Bachelors Theses and Reports, 1928 - 1970
Two sets of weld-test coupons, supposedly made under identical conditions, were submitted to this institution last year for approval and certification under the A.S.M.E. Welder's Qualification Code. The first set of coupons was unsatisfactory. The second set, made by the same operators one month later, was satisfactory.
The Corrosion Resistance Of Iron-Tin Compacts As Produced By Powder Metallurgy, Robert W. Gambill
The Corrosion Resistance Of Iron-Tin Compacts As Produced By Powder Metallurgy, Robert W. Gambill
Bachelors Theses and Reports, 1928 - 1970
The art of Powder Metallurgy deals with the preparation of metal powders and their utilization. As a more pertinent definition, the following has been suggested: "Powder Metallurgy is the art of producing metal powders and shaped objects from individual, mixed, or alloyed metal powders, with or without the inclusion of non-metallic constituents".
Electro-Deposition Of Iron From A Chloride Bath, Charles W. Noon
Electro-Deposition Of Iron From A Chloride Bath, Charles W. Noon
Bachelors Theses and Reports, 1928 - 1970
Iron was electro-deposited from a ferrous chloride bath. Studies were made of deposits formed when current density was varied, and finally when both current density and temperature were changed. An attempt was made to lay the ground work for a long range study of the chloride bath, and to determine the most simple conditions possible for obtaining a smooth, even, and thick deposit.
Age Hardening Of Copper Antimony Alloys, William R. Stern
Age Hardening Of Copper Antimony Alloys, William R. Stern
Bachelors Theses and Reports, 1928 - 1970
A large number of alloys of varying percentages of copper and antimony were prepared. These alloys were treated in various ways which might be expected to produce age hardening. The effect of cold working was studied in the range where the alloys were malleable.
The Effect Of Boron On The Hardenability Of Steel, William J. Foy
The Effect Of Boron On The Hardenability Of Steel, William J. Foy
Bachelors Theses and Reports, 1928 - 1970
Many attempts have been made to improve iron and steel and their alloys by the addition of boron. The results obtained were not encouraging for the reason that the amount of boron used, generally from 0.2 to 2.0 per cent is altogether too high. This percentage of boron renders the product hard and brittle and of late the experiments with boron in this connection have been practically abandoned.
Electrolytic Deposition Of Iron, Irving M. Kenoffel
Electrolytic Deposition Of Iron, Irving M. Kenoffel
Bachelors Theses and Reports, 1928 - 1970
In this thesis the purpose was to obtain a good iron deposit from a relatively simple bath. The deposit was to be of good nature and low in Carbon content. Also included is a summary of the uses to which electrolytic iron can be put as well as a summary of work done by other researchers in depositing iron electrolytically.
The Determination Of Aluminum In The Presence Of Manganese And Iron By The Use Of A Mercury Cathode, William R. Opie
The Determination Of Aluminum In The Presence Of Manganese And Iron By The Use Of A Mercury Cathode, William R. Opie
Bachelors Theses and Reports, 1928 - 1970
Since 1880, when Wolcott Gibbs made the suggestion that mercury could be used as a cathode in gravimetric electroanalysis, many articles have appeared in literature either criticizing the method or citing successful results which have been obtained by it.
The Electrowinning Of Manganese From Rhodochrosite, Lloyd L. Thompson
The Electrowinning Of Manganese From Rhodochrosite, Lloyd L. Thompson
Bachelors Theses and Reports, 1928 - 1970
Manganese is commonly known to be a metal of great strategic importance. It is essential in the production of all steels, first as a scavenger to remove oxygen and sulfur, and second as an alloying element in wear-resistant steels.
The Extraction Of Chromate Salts From Montana Chromite, Server Tasdemiroglu
The Extraction Of Chromate Salts From Montana Chromite, Server Tasdemiroglu
Bachelors Theses and Reports, 1928 - 1970
In this thesis I have tried to determine the suitable temperature, time and the amount of soda ash and lime needed for the calcining process. The leaching and purification tests were studied experimentally. The earlier process for making chromate from chromite was not the same as is used today. Therefore I have found it useful to put into this thesis the newest method for making chromate salts and their important uses.
The Testing And Concentration Of A Tungsten Ore, Turdat S. Simone
The Testing And Concentration Of A Tungsten Ore, Turdat S. Simone
Bachelors Theses and Reports, 1928 - 1970
At the present time the principal uses for tungsten lie in the manufacture of ferro-alloys and tungsten steels. Due to it’s hardening and strengthening characteristics it holds an important position among steel hardening metals. The great rush for it’s production during the World War years clearly points to it’s importance in the manufacture of armament.
A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson
A Rapid Determination Of Small Amounts Of Lead In Zinc, George T. Hanson
Bachelors Theses and Reports, 1928 - 1970
This investigation, carried on in the metallurgical laboratories at the Montana School of Mines, was undertaken with the desire to work out a rapid method for the estimation, or the determination, of the amount of lead in zinc.
The Electroplating Of Cadmium From Sulfate Solutions, Lewis S. Prater
The Electroplating Of Cadmium From Sulfate Solutions, Lewis S. Prater
Bachelors Theses and Reports, 1928 - 1970
It has been proven that cadmium forms a very satisfactory plate on steel, which has to withstand severe corrosion, especially the corrosion of sea water and spray. The metal is now successfully plated electrolytically from cyanide solutions, but wherever work is carried on with cyanide, there is great danger of poisoning to the workers.
The Electrical Resistance Of Metals In Their Hard And Soft States, Eugene A. Avery
The Electrical Resistance Of Metals In Their Hard And Soft States, Eugene A. Avery
Bachelors Theses and Reports, 1928 - 1970
Many investigations have shown that the electrical resistance of soft annealed metals is usually smaller than that of metals in their hard, cold worked state. By annealing cold-worked metals, the electrical resistance decreases to a minimum and then increases upon continued annealing at higher temperatures. The work performed in this investigation upon silver, aluminum, copper, nickel, and soft steel corroborates this idea.