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【Daily Question】2015.07.12 Austenitic stainless steel (first 100 replies + 2 wealth points; additional 3–8 wealth points for correct answers)

2015-07-12View Original

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This post was last edited by zzhaichuan on 2015-7-13 08:15. The Mechanical Section has introduced the \"Question of the Day\" feature, which not only helps to foster an active atmosphere for technical discussions and guide the direction of such exchanges but also provides users with financial rewards, enabling them to experience various cool features. True or False question: The purpose of stabilizing or solution treating austenitic stainless steel pressure vessels is to resist stress corrosion. ( ) Answer × To prevent intergranular corrosion. Thank you also to moderator HSLJHZ for the reminder; this question was already asked on 06.07, so we will try to avoid similar questions in the future. Note: We will close this thread after 24 hours, and at that time we will announce the best response (the most helpful one), as well as the answer and explanation. Charisma Reward: Those who post a topic in this section within two days to provide a detailed explanation or discussion of the knowledge points related to this topic are asked to reply/comments in this post to inform us, and we will then award them charisma points. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights and opinions. After registration, we will rank participants based on the content of their posts: the last-place participant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm. http://bbs.hcbbs.com/thread-1381938-1-1.html Earning wealth by inviting friends http://bbs.hcbbs.com/thread-1389240-1-1.html [Mechanical Section] Collection of essential knowledge 【Seeking manufacturer sponsorship】 (long-term campaign)
Reply #22015-07-12
Stabilization or solution treatment of austenitic stainless steel pressure vessels is intended to resist stress corrosion. (Mistake)
Reply #32015-07-12
Stabilization or solution treatment of austenitic stainless steel pressure vessels is intended to resist stress corrosion. (Yes)
Reply #42015-07-12
Stabilization or solution treatment of austenitic stainless steel pressure vessels is intended to resist stress corrosion. It is probably to prevent intergranular corrosion
Reply #52015-07-12
Error. Stabilization treatment is done to eliminate stress. Solution treatment is intended to improve corrosion resistance.
Reply #62015-07-12
Answer: The purpose of stabilizing or solution-treating austenitic stainless steel pressure vessels is to resist stress corrosion. (X) The purpose is to improve resistance to intergranular corrosion.
Reply #72015-07-12
True or False: The purpose of stabilization or solution treatment for austenitic stainless steel pressure vessels is to resist stress corrosion. ( ) Answer: Yes
Reply #82015-07-12
Error: The purpose of stainless steel solution treatment is to obtain a single-phase austenitic structure in order to improve corrosion resistance. The purpose of the stabilization treatment is to cause the carbon dissolved in austenite to precipitate together with titanium in the form of titanium carbide, so that carbon no longer forms carbides with chromium; this effectively eliminates the possibility of chromium depletion at grain boundaries and prevents intergranular corrosion. The solutioning temperature is generally 980–1100°C, while the stabilization temperature is usually 850–900°C.
Reply #92015-07-12
The error is to resist intergranular corrosion.
Reply #102015-07-12
Stabilization or solution treatment of austenitic stainless steel pressure vessels is intended to resist stress corrosion. (V)

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