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一、前言在进行液化石油气球形储罐多次返修对焊接接头韧性影响的试验中,为了与母材韧性对比,我们曾对轧制状态供货的16M.R 厚板(S=34)进行了低温下的系列冲击韧性试验,即在不同的温度下(包括常温与低温-40℃)夏氏 V 型缺口冲击韧性值与温度关系试验,以测出16M_nR 钢板的脆性转变温度区域。
I. INTRODUCTION In the trial of the effect of multiple rework of spherical tanks for liquefied petroleum gas on the toughness of welded joints, we compared the toughness of the parent material with that of the 16M.R plate (S = 34) supplied in the rolled state A series of impact toughness tests at low temperatures were carried out to test the relationship between Charpy V-notch impact toughness and temperature at different temperatures (including room temperature and low temperature -40 ° C) to determine the brittle transition temperature region of 16M_nR steel.