Effect of modification of the structure and properties of welded joints in 12Kh18N10T steel

Lazebnov, P P; Aleksandrov, A. G.; Panfilova, S. Ya.

doi:10.1080/09507118909446658

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“…2 The results show that the mechanical properties and corrosion resistance of the deposited chromium-nickel metal modified with yttrium and calcium increase in comparison with the welded joints without microadditions and the parent metal (12Khl8N10T steel). 3 The experiments show that it is possible to improve the corrosion resistance of the deposited metal of Khl8N9 type with a simultaneous improvement of the mechanical properties by adding calcium-bearing components to the welding electrodes. The optimum values of the physico-chemical properties were obtained at a lower residual calcium content in the deposit than the yttrium content.…”

Section: Discussionmentioning

confidence: 97%

Properties of deposited chromium‐nickel metal modified with yttrium and calcium

Lazebnov

1992

Welding International

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To cite this article: P P Lazebnov (1992) Properties of deposited chromium-nickel metal modified with yttrium and calcium, Welding International, 6:4, 311-313, Properties of deposited chromium-nickel metal modified with yttrium and calcium P P LAZEBNOV V Ya Chubar' Engineering Institute, Zaporozh'e One of the methods of increasing the physico-chemical properties of welded joints in corrosion-resisting steels is to produce a metal with a low content of gases and technological impurities by treating it with rare and alkali earth elements.In this article, the results are presented of examining the effect of yttrium and calcium on the mechanical properties and corrosion resistance of deposited chromium-nickel metal.The main metallurgical processes are based on oxidationreduction reactions of the components of steel and alloys. Consequently, the strength of oxides, nitrides and other non-metallic compounds expressed by a specific method is one of the most important characteristics in theoretical metallurgy. 1 For this reason, a comparative evaluation of the stability of hydrides, nitrides, sulphides and oxides of yttrium and calcium was carried out.To a first approximation, the assumption on the properties of the chemical compounds makes it possible to compare the values of the Gibbs energy of their formation reactions. -200 -WO

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Section: Discussionmentioning

confidence: 97%