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| 2205双相不锈钢模拟焊接HAZ组织与性能 | |
| 引用本文： | 张建勋,李庆琰,李为卫,张田宏.2205双相不锈钢模拟焊接HAZ组织与性能[J].稀有金属材料与工程,2006,35(11):1822-1825. |
| 作者姓名： | 张建勋 李庆琰 李为卫 张田宏 |
| 作者单位： | 1. 西安交通大学,金属材料强度国家重点实验室,陕西,西安,710049 2. 中国石油天然气集团公司石油管力学和环境行为重点实验室,陕西,西安,710065 3. 洛阳船舶材料研究所,河南,洛阳,471039 |
| 基金项目： | 中国石油管力学和环境行为重点实验室基金 |
| 摘 要： | 采用热模拟法研究了2205DSS焊接HAZ的组织与性能，探讨了冷却时间对模拟HAZ冲击韧性的影响规律。结果表明：冷却时间对组织及性能有很大的影响，随冷却时间的延长，铁素体含量减少，奥氏体含量增加，冲击韧性增大：随冷却时间延长，模拟组织显微硬度降低，而且模拟组织中铁素体的硬度低于奥氏体的硬度：固定冷却时间t8／5时，随冷却时间t12／8的增加，冲击韧性提高：固定冷却时间t12／8时，随冷却时间t8／5的增加，冲击韧性降低。 |
| 关 键 词： | 冷却时间 2205双相不锈钢 热模拟 冲击韧性 |
| 文章编号： | 1002-185X(2006)11-1822-04 |
| 收稿时间： | 2005-11-18 |
| 修稿时间： | 2006-08-18 |
The Microstructure and Impact Toughness of Simulated Welding HAZ in 2205 Duplex Stainless Steel |
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| Zhang Jianxun,Li Qingyan,Li Weiwei,Zhang Tianhong.The Microstructure and Impact Toughness of Simulated Welding HAZ in 2205 Duplex Stainless Steel[J].Rare Metal Materials and Engineering,2006,35(11):1822-1825. | |
| Authors: | Zhang Jianxun Li Qingyan Li Weiwei Zhang Tianhong |
| Abstract: | The microstructures and impact toughness of thermal simulated welding HAZ in 2205 duplex stainless steel were studied by means of thermal simulator and impact testing in the paper. The influences of cooling time on the impact toughness of thermal simulated HAZ were investigated also. The results show that the cooling time has strong effects on the impact toughness of the thermal simulated HAZ, that the ferrite content and micro hardness decreases as increasing of cooling time, that the microhardness in ferrite is lower than that than in austenite, that impact toughness increases with the increase of the cooling time t12/8 for a certain cooling time t8/5, and that impact toughness decreases with the increase of the cooling time t8/5 for a certain cooling time t12/8. |
| Keywords: | cooling time 2205 duplex stainless steel thermal simulation impact toughness |
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