This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'Which of the following decrease with strain hardening? \nSelect and explain. \nA. Surface hardness, B. Strength, C. Proportional limit, D. Corrosion resistance', 'role': 'user'}, {'content': 'Answer: D \nExplanation: CORROSION RESISTANCE OF AUSTENITIC STAINLESS STEEL\nThe surface of stainless steel is highly prone to oxidation, but its passive surface oxide film blocks significant oxygen diffusion to the underlying alloy, thus limiting further oxidation.\xa0\nNonetheless, stainless steel can corrode under certain conditions.\xa0\xa0\nSevere strain hardening produces highly stressed regions that are anodic to less stressed regions in the presence of saliva. Organic or inorganic deposits and any site of surface roughness on metal may result in localized concentrations of cell corrosion. Thus, corrosion resistance decreases with strain hardening.\nReference: PHILLIPS’ SCIENCE OF DENTAL MATERIALS, 12th ed page no 407', 'role': 'assistant'}]