金属学报  1987, Vol. 23 Issue (5): 391-395

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34CrNi3Mo转子钢的氢致脆化

康大韬;廖波;陈廉;刘民治

东北重型机械学院;东北重型机械学院;中国科学院金属研究所;中国科学院金属研究所

HYDROGEN INDUCED EMBRITTLEMENT OF ROTOR STEEL 34CrNi3Mo

by KANG Datao; LIAO BO (Northeast Heavy Machinery Institute);CHEN Lian;; LIU Minzhi(Institute of Metal Research;Academia Sinica; Shenyang)(Manuscript received 15 April; 1985)

康大韬;廖波;陈廉;刘民治. 34CrNi3Mo转子钢的氢致脆化[J]. 金属学报, 1987, 23(5): 391-395.
, , , . HYDROGEN INDUCED EMBRITTLEMENT OF ROTOR STEEL 34CrNi3Mo[J]. Acta Metall Sin, 1987, 23(5): 391-395.

摘要 参考文献 相关文章 Metrics 全文: PDF(1087 KB)   摘要: 本文通过系列氢含量试样的慢拉伸试验研究了34 CrNi3 Mo转子钢的氢致脆化.得到了如下结果:(1)随钢中氢含量的增加与应变速率的减慢,钢的塑性急剧下降。当钢中氢含量达到5mL/100g、拉伸应变速率为3×10~(-5)s~(-1)时,34CrNi3Mo转子钢的塑性几乎完全丧失.此转子钢的无白点极限含氢量力2mL/100g;无氢脆极限含氢量为1.48mL/100g. 扫描电镜观察表明,在慢拉伸试样中白点呈边界清晰的近于椭圆形的斑点,其微观形貌为走向比较清楚的撕裂岭与准解理小平面构成的穿晶准解理。 Abstract：The hydrogen-induced embrittlement of rotor steel 34CrNi3Mo was studied by means of slow tensile test of specimens with various hydrogen contents. With the increase of hydrogen content in the steel and the retardation of strain rate, its plasticity drops sharply till almost wholly lost when hydrogen stexceeded 5mL/100g and strain rate was down to 3×10~(-5)s~(-1). The hydrogen content of steel to free flake or hydrogen-induced embrittlement is limited to 2 or 1.48mL/100g respectively. SEM observation shows that the flakes in slow tensile tested specimens revealed their elliptical freckles of sharp boundaries and the micromorphology is transgranular quasi-cleavage consisting of clear tearing ridges and tiny quasi-cleavage planes. 收稿日期: 1987-05-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 康大韬 廖波 陈廉 刘民治 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1987/V23/I5/391 1 #12 2 东北重型机械学院,第一重型机器厂,一机部情报研究所.大锻件热处理,机械工业出版社,1974 3 Louthan M R Jr, Caskey G R Jr, Donovan J A, Rawl D E, Jr. Mater Sci Eng, 1972; 10: 357 4 Bernstein I M, Thompson A W.Inter Metal Rev, 1976; 21: 269 5 Troiano A R. Trans ASME, 1960; 52: 54 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed