单词 | corrosion |
释义 | corrosionn. 1. The action or process of corroding; the fact or condition of being corroded. a. Destruction of organic tissue by disease, etc. ΘΚΠ the world > health and disease > ill health > a disease > diseases of tissue > [noun] > alteration of tissue > destruction or decomposition putrefactiona1400 corrosionc1400 attrition1543 momorsion1598 c1400 Lanfranc's Cirurg. 99 Alle scharpe corosivis if þat þei ben brent..her corrisoun [MS. B corosion] is lessid. 1543 B. Traheron tr. J. de Vigo Most Excellent Wks. Chirurg. i. v. f. 170/1 Dyseases of the teeth, payne, corosion, [etc.]. 1626 F. Bacon Sylua Syluarum §36 It is..a kinde of poyson: for that it worketh either by Corrosion or by a Secret Malignity. 1799 Med. & Physical Jrnl. 1 433 The corrosion of the larger blood vessels. 1882 Med. Temp. Jrnl. No. 52. 178 Ulceration and corrosion of [the stomach]. b. Destruction by chemical action; esp. by the action of acids, rust, etc. upon metal. ΘΚΠ the world > matter > condition of matter > bad condition of matter > [noun] > corrosion arrosiona1614 calcination1617 corrosion1617 corroding1691 eating1691 1617 J. Woodall Surgions Mate Termes 341 Corrosion is calcination, reducing things coagulated, by the corroding spirits of salt, sulphur..Aqua fortis, &c. into calx. 1757 tr. J. G. Keyssler Trav. IV. 70 Green borax or Chrysocolla..is nothing else but copper turned into rust by corrosion. 1875 R. Hunt & F. W. Rudler Ure's Dict. Arts (ed. 7) II. 285 Etching is the result of a chemical process resulting in corrosion of the metal on which the design has been laid down. ΘΚΠ the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] deterration1686 undermining1693 erosion1774 corrosion1781 degradation1799 denudation1811 corrasion1875 1781 Rennell in Philos. Trans. (Royal Soc.) 71 97 (note) This sand bank being always on the increase, occasions a corrosion of the opposite bank. d. Geology. The gradual destruction of rock or soil by chemical and solvent action of water, natural acids, etc.; also, the modification of crystals in a rock by the solvent action of residual magma; corrosion zone, the area so modified. ΘΚΠ the world > the earth > structure of the earth > formation of features > erosion or weathering > [noun] > corrosion corrosion1802 the world > the earth > structure of the earth > constituent materials > rock > texture or colour > [noun] > texture > corrosion zone corrosion zone1903 1802 J. Playfair Illustr. Huttonian Theory iii. 98 Some earths,..such as the calcareous, are immediately dissolved by water; and though the quantity so dissolved be extremely small, the operation, by being continually renewed, produces a slow but perpetual corrosion, by which the greatest rocks must in time be subdued. 1897 Geogr. Jrnl. 10 502 Erosion, corrosion, and hydrostatic pressure have..formed a real sponge of stone. 1903 A. Geikie Text-bk. Geol. (ed. 4) I. 141 The ferro-magnesian minerals of earlier consolidation among basalts and andesites are sometimes surrounded with a dark shell called the corrosion-zone. 1938 Science 15 Apr. 347/2 Soil deterioration or wastage through chemical action may be expressed by the word corrosion, in contrast with soil wastage by physical forces, or erosion. Corrosion is already in use by geologists to some extent to express virtually the same idea as that suggested. 1965 A. Holmes Princ. Physical Geol. (rev. ed.) xviii. 505 Corrosion, wearing-away of surfaces and of detrital particles and fragments by the solvent and chemical action of natural waters. 1968 R. W. Fairbridge Encycl. Geomorphol. 644/2 The limestone surfaces..are etched, pitted and transected...The corrosion is largely ‘biological weathering’, due to carbonic acid and humic acids in soil and around the roots of lichens and mosses. 2. figurative. ΚΠ a1610 J. Healey tr. Cebes' Table in tr. Epictetus Manuall (1636) 111 It will infect his whole life with a continual corrosion. 1750 S. Johnson Rambler No. 74. ⁋2 Peevishness..wears out happiness by slow corrosion. 1871 F. W. Farrar Witness of Hist. ii. 57 When the faith of her priests has been eaten away by the long corrosion of unacknowledged doubt. 3. concrete. A result or product of corrosion, as rust. rare. ΚΠ 1779 Fordyce in Philos. Trans. (Royal Soc.) 70 34 Arsenic unites with vitriolic, nitrous, and muriatic acids, forming a corrosion or compound not soluble in water. Compounds corrosion fatigue n. failure in a metal part subjected simultaneously to corrosion and to repeated stresses. ΚΠ 1926 D. J. McAdam Jr. in Proc. Amer. Soc. Testing Materials 26 243 Damage to the endurance properties of such specimens [of steel] is due to the combined action of corrosion and fatigue... Such failure under combined corrosion and fatigue may be called ‘corrosion-fatigue’. 1926 D. J. McAdam Jr. in Proc. Amer. Soc. Testing Materials 26 245 The corrosion-fatigue limit for this degree of corrosion differs very little for all the steels tested. 1955 H. J. Grover et al. Fatigue of Metals (1956) x. 139 This type of behaviour is known as ‘corrosion fatigue’ and is highly deleterious. This entry has not yet been fully updated (first published 1893; most recently modified version published online December 2020). < |
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