Abstract: A wear-resistant member and method for producing the same which member may form a movable member in an internal combustion engine which is subjected to high pressure such as a rocker arm, tappet, cam, valve or valve seat. The member is formed as a combination of a ferrous sintered body and a ferrous base body having a common surface. The sintered body is formed from a compressed powder body disposed in contact with the ferrous base body. The powder body, in a preferred embodiment, consists of 0.5 to 7.0% by weight carbon, 0.1 to 5.0% phosphorus, the balance being iron, and having a porosity of 12 to 20% by volume at least 40% of which is pores having a pore size of not more than 300 .mu.. The combined powder body and ferrous base body are heated to a temperature higher than the liquid-phase temperature of the powder body but lower than the melting point of the ferrous body to sinter the powder body.

Abstract: A sliding member for use in an internal combustion engine having an improved wear resistance. The sliding member has a sliding surface composed of a mixture of 50 to 97% by weight of high carbon ferrochromium and 3 to 50% by weight of ferrous alloy applied thereto by spraying. In a preferred embodiment, the ferrous alloy is high carbon iron containing at least 0.6% by weight of carbon.

Abstract: An abrasion resistant sintered alloy for use in internal combustion engines which comprises 0.5 to 4.0% by weight of carbon, 5.0 to 30.0% by weight of Cr, 1.5 to 16.0% by weight of Nb, 0.1 to 4.0% by weight of Mo, 0.1 to 10.0% by weight of Ni and 0.1 to 5.0% by weight of P, which permits liquid-phase sintering at temperatures not higher than 1,250.degree. C., and have 0.2 to 10% by volume of sintering pores at least 40% of which consist of pores having a pore size of not larger than 150 .mu.m, is disclosed.

Abstract: An abrasion resistered sintered alloy for use in internal combustion engines which comprises 0.5 to 4.0% by weight of carbon, 1.5 to 16.0% by weight of Nb, 0.1 to 4.0% by weight of Mo, 0.1 to 1.0% by weight of Ni and 0.1 to 5.0% by weight of P which permits liquid-phase sintering at temperatures not higher than 1,250.degree. C., and have 0.2 to 10% by volume of sintering pores at least 40% of which consist of pores having a pore size of not larger than 150 .mu.m is disclosed.

Abstract: An abrasion resistant sintered alloy for use in internal combustion engines which comprises 0.5 to 4.0% by weight of C, 5.0 to 3.0% by weight of Cr, less than 10.0% by weight of at least one of Ni, Mo, Co and Cu, 0.1 to 5.0% by weight of at least one of P, B and Si which permits liquid-phase sintering at temperatures not higher than 1,250.degree. C. and the balance iron, and have hardness after sintering of Hv 500 to 1,200, 7 to 45% by area ratio of cementite or eutectic crystal of cementite and P and 0.2 to 10% by volume of sintering pores at least 40% of which consist of pores having a pore size of not larger than 150 .mu.m.

Abstract: A sliding member, particularly adapted for use in an internal combustion engine, having a sprayed-on sliding surface consisting of 95.5 to 99.5% metal carbide such as chromium carbide and the remainder molybdenum. The hardness of the metal carbide is in a range of H.sub.v 750 to H.sub.v 2,000, the porosity of the layer is 30% or less and the thickness of the layer is 2.5 mm or less.

Abstract: A slidable member for a prime mover made of an abrasion resistant liquid-phase sintered alloy, containing 0.5 to 4.0% by weight of carbon, 8.0 to 30.0% by weight of chromium, and 0.1 to 5.0% by weight of at least one of phosphorus, boron and silicon which permit liquid-phase sintering at not more than 1,250.degree. C., and the balance iron. The sintered alloy has 0.2 to 10% by volume of sintering pores at least 40% of which consist of pores having a pore size of not more than 150.mu..

Abstract: An abrasion and scuff resistant piston ring having an outer peripheral surface formed by the simultaneous spray deposition of from 30 to 95% of molten molybdenum and from 5 to 70% of molten iron alloy.