| 1Cr5Mo钢管道焊后热处理质量评定指标研究 |
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| 引用本文： | 康继东 张西庚. 1Cr5Mo钢管道焊后热处理质量评定指标研究[J]. 理化检验(物理分册), 1999, 35(8): 345-347 |
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| 作者姓名： | 康继东 张西庚 |
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| 作者单位： | [1]南京航空航天大学动力工程系 [2]中国石化总公司施工规范管理站淄博分站 |
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| 摘 要： | 以１Ｃｒ５Ｍｏ钢管道为例，讨论了焊后热处理质量评定指标，通过对实际接头不同热处理制度下及热处理前后残余应力，硬度的测定和显微组织的观察，认为对于１Ｃｒ５Ｍｏ钢，以接头的硬度最大值２２５ＨＢ作为热处理质量评定指标较为恰当。在焊接质量保证合格的前提下，一般可仅校验热处理温度记录曲线合格，判定热处理质量合格。
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| 关 键 词： | 焊后热处理 硬度 残余应力 钢 管道焊接 |
INVESTIGATION ON QUALITY ASSESSMENT INDEX OF POSTWELD HEAT TREATMENT FOR 1Cr5Mo STEEL PIPE |
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| Kang Jidong Tan Hua Wang Lei. INVESTIGATION ON QUALITY ASSESSMENT INDEX OF POSTWELD HEAT TREATMENT FOR 1Cr5Mo STEEL PIPE[J]. Physical Testing and Chemical Analysis Part A:Physical Testing, 1999, 35(8): 345-347 |
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| Authors: | Kang Jidong Tan Hua Wang Lei |
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| Affiliation: | Kang Jidong Tan Hua Wang Lei(Nanjing University of Aero. & Astro. )Zhang Xigeng(Tenth Construction Corporation of SINOPEC) |
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| Abstract: | The quality assessment index of postweld heat treatment for ICr5Mo steel pipe is investigated in this paper. Through the measurement of residual stress, hardness and observation of microstructures for the real welded joints of ICr5Mo steel pipe, it is pointed out that the maximum hardness value 225HB is a suitable index for quality assessment of ICr5Mo steel pipe. Moreover, when weld quality is secured, examination of heat treatment temperature recording curve can be employed as portweld heat treatment quality assessment. |
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| Keywords: | Postweld heat treatment 1Cr5Mo steel Hardness Residual stress |
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