intergranular corrosion वाक्य
उदाहरण वाक्य
मोबाइल
- Intergranular corrosion is a concern especially for alloys with high content of copper.
- Some austenitic stainless steels and nickel-based alloys are prone to intergranular corrosion.
- Certain alloys when exposed to a temperature characterized as a sensitizing temperature become particularly susceptible to intergranular corrosion.
- Referred to as dissimilar-metal corrosion, this process can occur as exfoliation or as intergranular corrosion.
- In a corrosive atmosphere, the grain interfaces of these sensitized alloys become very reactive and intergranular corrosion results.
- His research focus was on the mechanism of intergranular corrosion of aluminum-copper alloys and on the pitting of metals.
- Anisotropic alloys, where extrusion or heavy working leads to formation of long, flat grains, are especially prone to intergranular corrosion.
- Thus in certain aluminium alloys, small amounts of iron have been shown to segregate in the grain boundaries and cause intergranular corrosion.
- The ASTM A923, ASTM A262, and other similar tests are often used to determine when stainless steels are susceptible to intergranular corrosion.
- Another control technique for preventing intergranular corrosion involves incorporating strong carbide formers or stabilizing elements such as niobium or titanium in the stainless steels.
- Aluminium-based alloys may be sensitive to intergranular corrosion if there are layers of materials acting as anodes between the aluminium-rich crystals.
- Components within s Brayton loops suffer from corrosion and erosion, specifically erosion in turbomachinery and recuperative heat exchanger components and intergranular corrosion and pitting in the piping.
- Working through ASTM International he was instrumental in standardizing intergranular corrosion tests, including the ferric sulfate-sulfuric acid test now called the " Streicher Test " in his honor.
- Several methods have been used to control or minimize the intergranular corrosion of susceptible alloys, particularly of the annealing, quench-annealing or solution-quenching, has been used.
- Intergranular corrosion is generally considered to be caused by the segregation of impurities at the grain boundaries or by enrichment or depletion of one of the alloying elements in the grain boundary areas.
- Putting aside some of the well known facts about deposit phosphorus vs various properties, i . e . hardness or corrosion resistance that we will cover a bit later, deposits with a high degree of amorphous composition are free of grain boundaries, which typically act as sites for intergranular corrosion commonly encountered in crystalline deposits.
- High-strength aluminium alloys such as the Duralumin-type alloys ( Al-Cu ) which depend upon precipitated phases for strengthening are susceptible to intergranular corrosion following sensitization at temperatures of about 120 �C . Nickel-rich alloys such as Inconel 600 and Incoloy 800 show similar susceptibility . steam generators, or as a result of subsequent welding of the formed structure.
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