Friday, February 21, 2020
Integrity of high chromium steel dissimilar metal weld Literature review
Integrity of high chromium steel dissimilar metal weld - Literature review Example The austenitic stainless steels are definitely the commonly utilised material of all stainless steel categories. The commonly available austenitic family that is the 300 series comprises of the chrome- iron-nickel system. The austenitic stainless steels are comparably more resistant to corrosions since they have high weight percentage of the nickel and chromium content typically; that is 8-12% and 18-20% respectively. Additionally, they are non-hardenable via heat treatment and non-magnetic processes (Avazkonandeh-Gharavol, Haddad-Sabzevar and Haerian, 2008). However, the austenitic material can be hardened to some extent via cold working. The austenitic stainless steels are utilised extensively in the petrochemical, nuclear, and in the general corrosive chemical surroundings. The austenitic stainless steels are additionally classified by their carbon content as; the ââ¬Å"Lâ⬠grades or straight grades or the ââ¬Å"Hâ⬠grades. The straight grades consist of 0.03-0.08 % wt. Carbon; the L grades have less than 0.03% of Carbon; while the H grades consist of anywhere from about 0.04-0.10% weight of Carbon. The increased carbon content evident in the H grades leads to a more wear resistant and harder material. An increased carbon levels also assists the material in holding its strength at an elevated or high temperatures, thus frequently utilised in the high-temperature applications or projects. However, the increased carbon levels lead to problems that are directed to the Heat Affected Zone (HAZ) in the welds. The lower or reduced carbon compositions of the ââ¬Å"Lâ⬠grades were specifically meant for the improved weldability the material (Gandy, Shingledecker and Viswanathan, 2011). The high carbon grades are frequently utilised where wear resistant, harder, or the high-temperature applications are present. The low carbon stainless steels, for example, the 304L and 316L, are regularly utilised in applications that the intergranular
Wednesday, February 5, 2020
Economic, Political and Cultural Factors Important for Comfortable Man Assignment
Economic, Political and Cultural Factors Important for Comfortable Managing Business - Assignment Example Porterââ¬â¢s Diamond model assists in analyzing and improving a countryââ¬â¢s position in an internationally competitive field. It demonstrates that nations can be competitive regardless of factors like natural possessions such as land and other resources. According to (Botten, 2007), the government has a role of encouraging and pushing organizations to the most competitive levels so as to increase performance and eventually help realize a total joint benefit. Mannââ¬â¢s SPT model only talks of developing the triangles used in profiling countries and organizations, as depicted in by Clarence Mann when the author talks about ways of managing risks in a country using social process triangle.Porterââ¬â¢s Diamond model highlights major points in managing risks in a country. The points outlined here major on; foreign direct investment, government, multinational enterprises, and the Double diamond. Foreign Direct Investment tends to focus within a particular continental area. A ccording to Porterââ¬â¢s model, outward FDI (Foreign Direct Investment) is very valuable in generating competitive advantage as opposed to inward FDI which is termed entirely unhealthy. (Norton, 2009) points out that comparative disadvantage results from foreign subsidiaries being only importers, one of the reasons that have ultimately influenced Indiaââ¬â¢s Coca-cola import and export economy. FDIââ¬â¢s statements have been questionable but results from research and development carried out by foreign-owned firms indicate that the big 20 U.S subsidiaries in India, export nearly as much as the ones they import!
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