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EFFECT OF AUSTENITE ON CONTACT FATIGUE PROPERTIES OF AUSTENITE-BAINITE DUCTILE IRON |
CONG Jiarui; FAN Heli; CAO Xingyan; LI Longsheng (Dalian University of Technology); CAO Yuejun; XU Xiangqiu (Changchun Automobile Materials Institute) |
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Cite this article:
CONG Jiarui; FAN Heli; CAO Xingyan; LI Longsheng (Dalian University of Technology); CAO Yuejun; XU Xiangqiu (Changchun Automobile Materials Institute). EFFECT OF AUSTENITE ON CONTACT FATIGUE PROPERTIES OF AUSTENITE-BAINITE DUCTILE IRON. Acta Metall Sin, 1992, 28(7): 41-44.
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Abstract 20-40% austenite in austenitic-bainitic ductile nodular cast iron. During roiling contact fatiguing, only 5—10% of such austenite in surface layer may transform into stress-induced martensite in untransformed austenitic areas. The transformation seems to be slightly improved surface hardness and unaffected upon contact fatigue properties of the iron.
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Received: 18 July 1992
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1 Sharma V K. In: lst Int Conf on Austempered Ductile Iron: Your Means to Improved Performance, Productivily and Cost, Chicago, April 2-4, 1984, ASM, 1984:53-62 2 Kalevi J. In: lst Conf on Austempered Ductile Iron: Your Means to Improved Performance, Productivily and Cost, Chicago, April 2-4, 1984, ASM, 1984: 135-148 3 沈会滨.铸造技术,1986;(6) :31-34 4 曹月君,丛家瑞,徐香秋,范鹤立.球铁,1989;(4) :10-14 5 范鹤立,丛家瑞,李隆盛.大连理工大学学报,1989;29:295-300 |
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