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| 1 | Effect of Grinding Temperatures on the Surface Integrity of a Nickel-based Superalloy显示文摘An experimental study was carried out to investigat e the influence of temperatures on workpiece surface integrity in surface grinding of a cast nickel-based superalloy with alumina abrasive wheels. Temperatur e response at the wheel-workpiece interface was measured using a grindable foil /workpiece thermocouple. Specimens with different grinding temperatures were obt ained through changing grinding conditions including depth of cut, workpiece fee d speed, and coolant supply. Changes in surface roughness, residual stress, meta llographies, ground surface morphology, and micro hardness on the specimens were then analyzed. Bending fatigue tests were separately conducted at room temperat ure and 950oC in an effort to evaluate the influence of temperatures on the serv ice life of the ground specimens. A different burning color was found on the gro und workpiece surfaces when grinding temperatures are over a critical value. Alo ng with the emergence of burning color, roughness of the ground workpiece surfac e increased greatly compared with the surfaces without burning color, which was attributed to the plastically deformed coatings on the workpiece surface with el evated temperatures. Excepting the surface roughness, other items concerning the surface integrity of the ground workpiece were not affected by temperatures pro vided that grinding temperatures are not high enough to cause grinding cracks. B ased on the findings in this study, the grinding of the nickel-based superalloy can be divided into two stages in order to increase production efficiency, in which case the first stage is to reach an high material removal rate without concerning of the presence of burning color, whereas the second stage is to remo ve the plastically deformed coatings in order to decrease surface roughness. | YU Yi-qing 1, XU Xi-peng 1, XU Hong-jun 2 (1. College of Mechanical Engineering and Automation, Huaqiao Univers ity, Quanzhou 362011, China 2. Nanjing University of Aeronautics and Astronau tics, Nanjing 210016, China) | 2002 | 厦门大学学报(自然科学版)2002，41，S1： | 5 |
| 2 | he ecophysiologi , Pinus densiflo t, 2003,176:195 Effects of uncal characteris- ra 显示文摘 | Kume A~ derstory vegetation on t tics of an overstory pine Ecology and Managemen Tsubei N | 2003 | Forest2003，203，： | 1 |
| 3 | National systems of entre- preneurship: Measurement issues and policy implica- tions显示文摘 | tiCs Z Autio E Szerb L | 2014 | Research Policy2014，43，3： | 1 |
| 4 | Aente emergence of Eliza- bethkingia meningoseptica infeelicm among mechanically venlilaled patients in a long-term acute care facility 显示文摘 | Weaver KN Janes tIC Albright R | 2010 | Infect Comtrol Hosp Epidemiol2010，31，1： | 1 |
| 5 | BjussuSP-I:a new thrombin-like enzyme isolated from Bothropsjararacussu snake ven- om 显示文摘 | Sant' Ana C D Tic|i F K Oliveira L L | 2008 | Comp Biochem Physiol A Mol Integr Physiol2008，151，3： | 1 |
| 6 | Effect of ungiotensin and norepinephrine upon urate clearance in man显示文摘 | Ferris TiC Gorden P | 1993 | Am J Med1993，19，68： | 1 |
| 7 | Identification of serum amyloid a protein as a potentially useful biomarker to monitor relapse of nasopharyngeal cancer by serum profiling显示文摘 | Cho WCS Yip TIC Yip C | 2004 | Clin Cancer Res2004，10，1： | 1 |
| 8 | Theory of mag- Twin boundary interaction in ferromagne- memory alloys 显示文摘 | Paul D I netization tic shape Physics Marquiss J Quattrochi D | 2003 | Journal of Applied2003，93，8： | 1 |
| 9 | Single cell gel comet assay: guidelines for in vitro and in vivo genetic toxicology testing 显示文摘 | Tic'e RR Agureil E Anderson D | 2000 | Environ Mol Mutag2000，35，： | 1 |
| 10 | Process design of water tt,atment plant on groundwater with high hardness in Yucheng显示文摘 | Wu 1) J Tic Z Y Wang L et d | 2013 | Desalination and Water Treatment2013，51，19： | 1 |
| 11 | Haemophilus influenza in chronic bronchitis 显示文摘 | Murphy TIc | 2000 | Semin Respir lnfeet2000，15，1： | 1 |
| 12 | Determination of Pre-impact Occupant Pos- tures and Analysis of Consequences on Injury Outcome-Part II: Biomechanical Study显示文摘 | HAULT-DUBRULLE Audrey ROBACHE Frederic DRAZE- TIC Pascal | 2011 | Accident Analysis And Preven- tion2011，43，1： | 1 |
| 13 | A multi-center phase II study tff S-1 plus paclitaxel as first-line therapy for patients with lvanced or recurrrent unresectable gastric cancer显示文摘 | Lee JJ Kim SY Chung tiC | 2009 | Cancer Chemother Pharmacol2009，63，6： | 1 |
| 14 | The prognosis of depression in old age 显示文摘 | Baldwin tiC Jolley DJ | 1986 | Br J Psychiatry1986，149，： | 1 |
| 15 | Cerebellar LTD and learning - dependent timing of conditioned eyelid responses 显示文摘 | Koekkoek SK Hulseher tiC Dortland BR | 2003 | Science2003，301，2： | 1 |
| 16 | Glut9 is a major regulator of urate homeostasis and its genetic inactivation induces hyperuricosuria and urate anephropathy显示文摘 | Fre'de' tic Preitnera Olivier Bonny Alexandra Laverrie're | 2009 | PNAS2009，106，15： | 1 |
| 17 | Cancertestis antigen 7 expression and immune responses following allogeneic stem cell transplantation formultiple myeloma 显示文摘 | TYLER EM JUNGBLUTH A A GNJA TIC S | 2014 | Cancer Immunol Res2014，2，6： | 1 |
| 18 | Elucidation of the solution structure of cardiotoxin analogue V from the Taiwan cobra ( Naja naja atra)-Identificatlon of structural features important for the lethal action of snake venom cardiotoxins显示文摘 | Jaraman G Kumar TICS Tsai CC | 2000 | Protein Science2000，9，： | 1 |
| 19 | Cytological factors relating to posterior capsule opacification following cataract surgery显示文摘 | Jacob TIC Humphrey RC Davies EG | 1987 | Br J Ophthalmol1987，71，9： | 1 |
| 20 | Chemotherapy followed by surgery compared with surgery alone for localized esophageal caneer显示文摘 | Kelsen DP Ginsberg R Pajak TIc | 1998 | N Engl J Med1998，339，27： | 1 |
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