【Daily Question】December 11, 2015: Corrosion resistance of duplex stainless steel (Top 50 participants + 2 rewards)

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This post was last edited by gn_1984 on 2015-12-14 09:46. In order to increase the popularity of the heat exchange section, a \"Question of the Day\" activity has been introduced there; this helps to foster an active atmosphere for technical exchanges while also providing members with certain financial rewards. 【Daily Question】Duplex stainless steel exhibits good resistance to （） corrosion. A. Intergranular B. Stress; C. Fatigue D. None of the above. Correct answer: B (It has good resistance to stress corrosion; there is no issue of intergranular corrosion, as corrosion mainly affects austenitic stainless steels). Post your answer as a reply; participating in the quiz earns you +2 wealth points (wealth is added automatically – no additional points or comments will be given if your answer is incorrect). If you answer all questions correctly, you’ll receive an additional +3 to +8 wealth points. Extra rewards will also be given if you provide a thorough analysis and explanation for the questions or answers, or if your explanations are based on standard criteria. If your answer is correct and your analysis is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions. Note: We will close this post after 24 hours to reveal the answers and explanations, as well as the best response (the best help). Attraction Reward: If you post a topic in this section within two days to provide a detailed explanation of the knowledge points covered in this question, please reply to this post to inform us, and we will ask a moderator to grant you +Attraction. 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. After registration, we will rank participants based on the content of their posts: the last-place contestant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm. Other content: AC version of heat exchange equipment – “One question per day” competition (prizes for participation; valid indefinitely) http://bbs.hcbbs.com/thread-1320941-1-1.html. The selection process for active users and “Weekly Stars” in the “Mechanical Section” has begun http://bbs.hcbbs.com/thread-1489069-1-1.html. Recruitment for moderators and technicians in the [Mechanical Section] – applications and referrals are welcome. [Valid indefinitely] – Come if you’re interested! 】http://bbs.hcbbs.com/thread-1288857-1-1.ht【Mechanical Section】Comprehensive Guide to Preventing Freezing of Equipment Over Winter http://bbs.hcbbs.com/thread-1502793-1-1.html