孙晓霞,朱琳,吴兴振,郭胤,李小鸿,冯俊涛,胡娟

• 1:中国劳动关系学院
• 2:中国航天科工防御技术研究院
• 3:四川航天技术研究院
• 4:安泰科技股份有限公司

摘要(Abstract)：

采用光学显微镜、扫描电镜、电子万能试验机和显微硬度仪等研究了正火+回火+调质热处理工艺对ZG34Cr2Ni2Mo低合金钢显微组织及力学性能的影响。结果表明:正火(870℃×3 h)+回火(600℃×5 h)+调质(淬火860℃×3 h+回火600℃×5 h)的热处理工艺有助于提高ZG34Cr2Ni2Mo低合金钢的力学性能,常温和400℃高温下,其抗拉强度分别提高了24%和16%;400℃高温下伸长率是原始铸态的2.25倍,硬度提高了8%;常温的断口形貌显示,断口由铸态时的韧窝断裂,经热处理后变为解理断裂。

关键词(KeyWords)： 低合金钢;力学性能;热处理;显微组织

Abstract:

Keywords:

基金项目(Foundation): “中央高校基本业务费专项资金”项目(21ZYJS019)

作者(Author): 孙晓霞,朱琳,吴兴振,郭胤,李小鸿,冯俊涛,胡娟

DOI: 10.13289/j.issn.1009-6264.2020-0513

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