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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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时效对冷拔珠光体钢力学性能的影响
, PP. 1009-1013
Keywords: 共析珠光体钢,大变形,时效析出,力学性能
Abstract:
用TEM观察了共析珠光体钢经真应变为2.89的拉拔变形以及不同温度时效后微观组织变化，并测量了不同时效温度后的力学性能。结果表明，大变形珠光体钢在473K时效后获得相对于时效前更高的抗拉强度，在673K时效获得较均衡的强韧性能。组织观察发现，大变形中溶解的渗碳体在时效过程中弥散析出，分析认为碳化物的析出阻碍位错移动，使得宏观抗力增加，提高了该钢的力学性能。
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