{"title":"Stress corrosion cracking of high-pressure gas transmission pipelines","authors":"R.N. Parkins, R.R. Fessler","doi":"10.1016/S0141-5530(78)90045-6","DOIUrl":"10.1016/S0141-5530(78)90045-6","url":null,"abstract":"<div><p>Stress corrosion cracks that have been found on the outside surfaces of gas pipelines in the USA have been characterized by a branched, intergranular path and a black Fe<sub>3</sub>O<sub>4</sub> deposit on the crack surfaces. An ongoing research programme sponsored by the Pipeline Research Committee of the American Gas Association has revealed much about the causes of the cracking and about possible preventive measures.</p><p>It is believed that most, if not all, of the cracks have formed in a sodium carbonate—sodium bicarbonate environment in which a critical balance of activity and passivity has been achieved. Laboratory experiments have shown that the narrow range of potentials in which cracking is possible and the rate of crack growth can be correlated with the anodic polarization behaviour. Temperature has a strong effect on the rate of crack growth and on the probability of establishing appropriate electrochemical conditions for cracking. The occurrence of cracking has not been related to any unusual or specific composition of steel but modification of steel processing might eventually offer a practical way of preventing the problem. The function of stress is primarily to produce a rate of straining sufficient to continually expose fresh metal at the tip of the crack.</p><p>A large number of conceivable ways of avoiding stress corrosion cracking are being investigated. For existing pipelines, lowering the discharge temperature at compressor stations and hydrostatic retesting are being considered. Additional alternatives for future pipelines include modification of the steel and its surface condition, improvement of the coating, and the use of inhibitors.</p></div>","PeriodicalId":100706,"journal":{"name":"International Journal of Materials in Engineering Applications","volume":"1 2","pages":"Pages 80-96"},"PeriodicalIF":0.0,"publicationDate":"1978-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0141-5530(78)90045-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88990469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The use of materials in packaging systems","authors":"D.H. Morton","doi":"10.1016/S0141-5530(78)90027-4","DOIUrl":"10.1016/S0141-5530(78)90027-4","url":null,"abstract":"<div><p>A systematic approach to the selection of optimum materials for packaging systems based on analysis of the functions of the packaging, nature of contents, transit hazards and their various interactions is developed. Applicability of the approach to minimising packaging costs in several situations where packing serves a protective function is considered, and it is shown that the main requirement is for a better knowledge of the magnitudes and frequency distributions of hazards such as impact, humidity, crushing loads, etc, on packages in transit.</p></div>","PeriodicalId":100706,"journal":{"name":"International Journal of Materials in Engineering Applications","volume":"1 2","pages":"Pages 66-73"},"PeriodicalIF":0.0,"publicationDate":"1978-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0141-5530(78)90027-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73872809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abrasive wear","authors":"Martin A. Moore","doi":"10.1016/S0141-5530(78)90054-7","DOIUrl":"https://doi.org/10.1016/S0141-5530(78)90054-7","url":null,"abstract":"<div><p>Abrasive wear is an inadequately studied phenomenon. Several mechanisms are described and the difficulties of measuring the response of materials is emphasized, as is the need for further work.</p></div>","PeriodicalId":100706,"journal":{"name":"International Journal of Materials in Engineering Applications","volume":"1 2","pages":"Pages 97-111"},"PeriodicalIF":0.0,"publicationDate":"1978-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0141-5530(78)90054-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136851534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ion implantation for improved resistance to wear and corrosion","authors":"G. Dearnaley","doi":"10.1016/0141-5530(78)90005-5","DOIUrl":"10.1016/0141-5530(78)90005-5","url":null,"abstract":"<div><p>Ion implantation, which is now widely and successfully employed commercially for improving the performance of semiconductor devices, has been shown to improve the wear resistance and fatigue behaviour of engineering components. High service temperatures eliminate the benefits of implanted nitrogen. The process also has striking effects upon oxidation and aqueous corrosion, when metallic ions are used but unlike the mechanical applications these effects are not yet well assessed outside the laboratory. Commercial equipment for factory use of the treatment is becoming available and projected costs are around £25/ft<sup>2</sup> or £260/m<sup>2</sup>, which compares favourably with many other surface treatments.</p></div>","PeriodicalId":100706,"journal":{"name":"International Journal of Materials in Engineering Applications","volume":"1 1","pages":"Pages 28-41"},"PeriodicalIF":0.0,"publicationDate":"1978-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-5530(78)90005-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79098739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Failure prediction by condition monitoring (part 1)","authors":"B.J. Woodley Bsc, ARCs","doi":"10.1016/0141-5530(78)90004-3","DOIUrl":"10.1016/0141-5530(78)90004-3","url":null,"abstract":"<div><p>Condition monitoring is concerned with extracting information from plant, machines and components to indicate their condition, and to enable them to be operated and maintained with safety and economy. This general review of the subject initially discusses the principles of condition monitoring and its relation to the maintenance activity. It is noted that a condition monitoring method is an extension of the age-old principle of engineers in charge of machines using their own senses to obtain some general indication of machine condition. A summary is given of all the available monitoring methods. For historical reasons these are divided into two types: those for machine condition monitoring and those for plant corrosion monitoring. Particular emphasis is placed on relatively low-cost techniques of relevance to materials engineers. The power of such methods is illustrated by the use of practical examples. The practical benefits of carrying out condition monitoring and the possible economic benefits with the probable cost of setting up a condition monitoring system are discussed.</p></div>","PeriodicalId":100706,"journal":{"name":"International Journal of Materials in Engineering Applications","volume":"1 1","pages":"Pages 19-26"},"PeriodicalIF":0.0,"publicationDate":"1978-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-5530(78)90004-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79212651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Skateboards — a triumph of materials technology","authors":"N.A. Waterman, A. Crease","doi":"10.1016/0141-5530(78)90002-X","DOIUrl":"10.1016/0141-5530(78)90002-X","url":null,"abstract":"<div><p>Skateboards are an illustration of how engineering advance is often delayed awaiting suitable materials. The use of modern materials for the wheels, trucks and decks of skateboards and the design features affecting the choice of materials is explained.</p></div>","PeriodicalId":100706,"journal":{"name":"International Journal of Materials in Engineering Applications","volume":"1 1","pages":"Pages 7-12"},"PeriodicalIF":0.0,"publicationDate":"1978-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-5530(78)90002-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73354716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The fracture resistance of flake graphite cast iron","authors":"T.J. Baker MA, PhD, MIM, CEng","doi":"10.1016/0141-5530(78)90003-1","DOIUrl":"10.1016/0141-5530(78)90003-1","url":null,"abstract":"<div><p>The application of fracture mechanics to flake graphite cast iron is considered and it is shown that the fracture resistance can be characterized in terms o f a fracture toughness (K<sub>Ic</sub>) parameter. The micromechanism of fracture is illustrated and the fracture resistance is shown to be controlled by the form and distribution of the graphite and by the strength of the steel-like matrix.</p></div>","PeriodicalId":100706,"journal":{"name":"International Journal of Materials in Engineering Applications","volume":"1 1","pages":"Pages 13-18"},"PeriodicalIF":0.0,"publicationDate":"1978-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0141-5530(78)90003-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91026180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}