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Abrasive Wear Resistance of Dual Phase Steels DP980 and DP600
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作者 Xiu-lin JI Ju-yi WANG +1 位作者 Cui-cui JI Jian-hua ZHAO 《钢铁研究学报:英文版》 SCIE CAS CSCD 2015年第4期317-323,共7页
The abrasive wear resistance of dual phase(DP)steels DP980 and DP600 was investigated by using an ASTM rubber wheel abrasion tester.At 2.40m·s-1 sliding speed under 19.9Nload with 180-355μm abrasive sands,the we... The abrasive wear resistance of dual phase(DP)steels DP980 and DP600 was investigated by using an ASTM rubber wheel abrasion tester.At 2.40m·s-1 sliding speed under 19.9Nload with 180-355μm abrasive sands,the wear rates of DP980 and DP600were 1.01×10-11 and 0.86×10-11 m3·m-1,respectively,corresponding to about 1.9and 2.3times of the relative wear resistance of normal low-carbon steel ASTM A283 C.Using directly water quenching from austenitic temperature,the abrasive wear resistance of DP980 samples under 19.9 N load could be improved by 1.65 times.The wear rates of DP980 and DP600samples decreased respectively with increasing sliding speed and abrasive particle size and decreasing applied load.The experimental results reveal that the effect of martensite on the wear resistance not only depends on the volume fraction but also depends on the morphology,distribution and grain size. 展开更多
关键词 双相钢 磨损试验 相对耐磨性 磨粒 ASTM 滑动速度 磨料粒度 磨耗试验机
四川省野生荞麦资源现状及保护对策 预览 被引量:2
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作者 唐宇 孙俊秀 +1 位作者 刘建林 邵继荣 《现代农业科技》 2011年第15期 90-91,94,共3页
四川省野生荞麦资源研究表明,四川省现有野生荞麦种10个,变种2个。其中一些种类分布范围狭窄,数量较少,个别种类濒危程度严重。针对其存在的问题,提出了相应的保护对策。
关键词 野生荞麦资源 保护 现状 存在问题 对策 四川省
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