炼磷炉炉壳炸裂原因分析
Bursting Reason Analysis of Phosphor-making Furnace Steel Shell
摘 要
某制磷厂的八座炼磷炉在使用9～10 a(年)后, 其钢结构圆柱形炉壳相继发生炸裂。通过宏观检验、金相检验、断口分析和化学成分分析等方法对炉壳钢板炸裂原因进行了分析。结果表明: 在磷燃烧产生的高温和反复开炉/停炉的条件下, 炉壳材料发生了氢损伤、珠光体球化、特大晶粒和应变时效等脆化效应, 磷酸腐蚀减薄炉壳, 加上热胀冷缩应力共同作用使炉壳最终发生炸裂。
炸裂
磷燃烧
氢损伤
特大晶粒
磷酸腐蚀
phosphor-making furnace shell
burst
phosphorus combustion
hydrogen damage
large grain
phosphoric acid corrosion
Abstract
The steel cylindrical shell of eight phosphor-making furnace bursted one after another after nine to ten years service in one phosphor-making furnace. By means of macroscopic examination, metallographic examination, fracture analysis, chemical composition analysis and so on, the shell burst reason was analyzed. The results showed that because of high temperatures of phosphorus combustion and repeated start and stop operation of phosphor-making furnace, the embrittlement effects such as hydrogen damage of shell material, pearlier spheroidization, large grain size and strain aging led to the shell thinning by phosphoric acid, together with the results of thermal expansion and contraction joint action of stress, the shell bursted at last.
中图分类号 TQ126.3+16
所属栏目 质量控制与失效分析
基金项目
收稿日期 2010/4/14
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备注吴安术(1963-),男, 高级工程师, 工程硕士。
引用该论文: WU An-shu,CHEN Yi,CHEN Xing-yuan. Bursting Reason Analysis of Phosphor-making Furnace Steel Shell[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2010, 46(11): 723～727
吴安术,陈义,陈兴元. 炼磷炉炉壳炸裂原因分析[J]. 理化检验－物理分册, 2010, 46(11): 723～727
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参考文献
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【2】TIPPER C F. The study of fracture surface markings[J]. JISI, 1957, 185(1):4-9.
【3】CRAIG B D. A fracture topographical feature characteristic of hydrogen embattlement[J]. Corrosion,1981,37(9):530-532.
【4】PRICE C E, COX D. Observing fatigue with the nonmarket technique[J]. Met Prog,1983,123(2):37-39.
【5】SEYS A A, BRABERS M J, VAN HAUTE A A. Analysis of the influence of hydrogen on pitting corrosion and stress corrosion of austenitic stainless steel in chloride[J]. Corrosion,1974,30(2):47-52.
【6】CIALONE H J, HOL BROOK J H. Effects of gaseous hydrogen on fatigue crack growth in pipe line steel[J]. Metall Trans A,1985,16(1):115-122.
【7】STEUBER R J, GEIGER G H. Hydrogen attack of steel under dynamic exposure conditions[J].Corrosion, 1966,22(11):309-319.
【8】HAKKARAINEN T J, WANAGEL J, LI C Y. Direct observation direct of methane bubbles in a2-1/4Cr-1Mo steel after hydrogen exposure[J]. Metall Frans A,1980,11（12）:2035-2038.
【9】YACAMAN M J, PARTHASARATHY T A, HIRTH J P. Hydrogen attack in an austenitic stainless steel[J]. Metall Trans A,1984,15（7）:1485-1490.
【10】WITINER D A, KRAUSS G. Effect of thermal history in the recrystallization behavior of law-carbon 0.3% Mn steels containing oxygen and sulfur[J]. Am Soc Metals Trans Quart,1969,62(1):447-465.
【11】NAUMANN F K, SPIES F. Case Histories in Failure Analysis[M]. USA:Printed in the United States of America,1979:213.
【12】KEH A S, LESLIE W C. Recent Observation on Quench-aging and Strain Aging of Iron and Steel, in Materials Science Research[M]. New York:Plenum Press,1963:208-250.
【13】BAIRD J D. The effects of strain-aging due to interstitial solutes on the mechanical properties of metals[J]. Metall Rev,1971,16(2):1-18.
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