两种管材夏比冲击试验影响因素分析  

Influencing Factors of Two Kinds of Tubular Goods′ Charpy Impact Test

作　　者：蔺卫平 李娜[1] 张华佳 梁明华 任继承 LIN Weiping;LI Na;ZHANG Huajia;LIANG Minghua;REN Jicheng(CNPC Tubular Goods Research Institute,Xi'an,Shaanxi 710077,China)

机构地区：[1]中国石油集团石油管工程技术研究院

出　　处：《石油管材与仪器》2019年第6期16-18,共3页Petroleum Tubular Goods & Instruments

摘　　要：对X70和P110两种石油管材,在20^-80℃进行了夏比冲击试验。研究了不同冲击锤刃、不同冷却方式、不同缺口型式和不同试样尺寸对试验结果的影响规律。结果表明,对这两种管材,采用8 mm锤刃时冲击吸收能量比采用2 mm锤刃高。对于吸收能量较低的油套管,使用不同冲击锤刃对吸收能量的影响不明显。不同冷却方式对吸收能量基本没有影响。小尺寸试样与10 mm×10 mm×55 mm试样吸收能量之间的比例系数,与标准中规定的理论值不相符。Charpy impact tests at different temperatures in the range of 20--80℃are carried out with both X70 and P110.Influence of different impact strikers,different cooling ways,different notch patterns and different specimen sizes on Charpy impact test results are researched.The results indicate that impact absorbed energy tested with 8mm striker is higher than that with 2 mm strike for high strength pipeline steels,impact absorbed energy change is insignificant for casing and tubing.Different cooling ways don't affect impact absorbed energy.The scale between subsize specimen and 10 mm×10 mm×55 mm specimen is discordant with theoretical value.

关 键 词：冲击锤刃 冷却方式 冲击缺口型式 冲击尺寸 

分 类 号：TG115.5[金属学及工艺—物理冶金]