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OALib Journal期刊
ISSN: 2333-9721
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淬火--配分--回火工艺处理钢的三体冲击磨损性能研究
Keywords: 金属材料,马氏体,淬火--配分--回火工艺,三体冲击磨料磨损,残余奥氏体
Abstract:
？研究了“淬火--配分--回火”(q--p--t)工艺对20si2ni3钢三体冲击磨料磨损性能的影响.结果表明,随试验冲击能量从0.5j增加到3.5j,试样的磨损失重量先增大后减小,在2.5j时出现峰;试样经q--p--t工艺处理后的磨损失重量低于传统淬火回火(q--t)工艺处理的试样,其主要磨损机制由犁削向应变疲劳转变;经q--p--t处理的样品在磨损试验后的表面加工硬化层厚度明显高于经q--t处理的样品.分析认为基体的高塑韧性及其在磨损过程中的形变强化和残余奥氏体的相变强化是q--p--t工艺处理钢具有较好的抗冲击磨料磨损性能的原因.
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