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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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变形温度对冷喷涂304不锈钢涂层材料高温变形行为的影响
DOI: 10.3724/SP.J.1037.2013.00241, PP. 1275-1280
Keywords: 冷喷涂,304不锈钢,变形温度,高温变形
Abstract:
采用冷喷涂技术制备了致密的304不锈钢涂层材料.利用热模拟试验机对冷喷涂304不锈钢涂层材料在1000－1150℃压缩变形,研究变形温度对其变形抗力、组织和硬度的影响.结果表明,随着变形温度由1000℃上升到1150℃,冷喷涂304不锈钢涂层材料稳态变形抗力由315.4MPa降低到187.9MPa,硬度由332.8HV0.2降低到244.8HV0.2,易变形区面积增大,自由变形区发生再结晶,裂纹减少.在上述变形条件下,热变形激活能Q为464kJ/mol.冷喷涂304不锈钢涂层在1237－1265℃发生相变.
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